“From start to finish, I probably learned a lot more here than I did in school,” the miniature painter, who made a cool $350 at his last sale in May, told The Post.

While some elementary school-age entrepreneurs step into the future on their own, many receive help adapting to the latest financial technology.

In 2020, the nonprofit Lemonade Day was founded with the goal of teaching kids how to run their stand like a real business, using personalized coaching and a handy smartphone app with administrative tools.

Across the country, 55,000 children have already registered for the child-friendly crash course in modern retail.

And the emphasis on technology seems to be a huge motivator that wasn’t there before.

“The idea of, ‘Oh, I don’t have any cash on me,’ is no longer a barrier,” Lemonade Day CEO Nicole Cassier-Mason told The Post.

“Part of our marketing plan for kids is designing QR codes for use… and they’ve really delved into modern and in-depth aspects of business,” Cassier-Mason said.

Here’s a closer look at the successes of three of citrus’ most talented captains, who took over their neighborhoods one pitcher at a time.

Kyrei Hartsfield, 9

Any Fortune 500 company would be lucky to have her.

The staggering amount of money Hartsfield has made from her long-running business – she signed up for Lemonade Day after falling in love with the process of making the drink – is just the tip of the iceberg.

In addition to imparting financial wisdom, Hartsfield’s mother is especially pleased that Kyrei has come out of her shell thanks to her “customer service skills.”

The fourth-grader suffered a stroke at age 2 and required brain surgery later in life.

She named her company Stroke Survivor Lemonade & Co. and has the charitable spirit of donating a quarter of her profits to the hospital that cared for her. Tips from her tablet payment system also go to Children’s Hospital Colorado.

Another quarter of the money will go toward the business – the goal is to open a food truck-style front desk next summer – and the other half will be saved so her mother can pay for it when Kyrei is older.

Kyrei has also grown her brand online to a national level, with nearly 1,600 followers and celebrity shoutouts from Shark Tank’s Daymond John and even two Dallas Cowboys cheerleaders, Anna Kate Sundvold and another named Kelee. Hartsfield saved up her money to go to cheer camp with them.

“She’s become a lemonade influencer,” said mother Kareisha, a war veteran, with a smile.

Business-wise, the large following drives customers to her own website, where online orders can be placed for pre-bottled drinks, which are also sold in person. In addition to local sales in her South Dallas suburb — she’s been known to deliver her drinks on a pink scooter — Hartsfield does several trade shows each year.

Kareisha recalls a recent incident where she sold about 500 copies in a few hours.

“People were raving about it… and came back to get like 20 bottles,” Kareisha said of the “crazy” moment.

Right now, Kyrei has her eye on a pink Tesla so she can drive around and go grocery shopping when she’s older. That’s a business expense, of course.

“She already knows she never wants to work for anyone,” Hartsfield said. “At 9, my daughter is her own boss.”

Amer Bharti, 11

Bharti went viral with his elaborate recipe for state fair-style lemonade: a delicious combination of a typical recipe with additional flavored syrups for a custom drink.

But that wasn’t an easy task. Bharti needed an investor first, because saving birthday money and grants didn’t quite cover the operating costs. They added a tent, sandbags to keep the weight down, and a special washing station that met local health regulations, along with the many syrups and mixes.

He did extra jobs around the house for his father, Ajay, to generate “initially a cash flow” of a few hundred dollars, the father told The Post.

But the rest was all Amer. The soon-to-be sixth-grader cleverly opened his stand, selling 32 ounces for $7, on the day of a homeowners association garage sale on his block, rousing his father from bed at 5:30 a.m. to help set up.

“I was the one who said, five more minutes,” Ajay joked.

After his successful day — he held a live budgeting session between clients — Bharti donates some money to a charity that funds school meals and sets aside money for his and his sister’s education.

He will then make a deal with a local supermarket to sell in their parking lot, which requires a cumbersome permit process. Father and son are already preparing to apply for and fulfill health needs such as hairnets and gloves.

And once again, the zone Amer envisions meets the most important idea of ​​good business: location, location, location.

“There are a lot of food trucks in that area, so that will definitely help with sales,” he said.

Lilly Farber, 7

Just a few miles from Wall Street, local kids like Farber are also changing the game, learning important life lessons along the way.

The 7-year-old Long Islander is already planning a roadside cider stand this Halloween, using lessons she learned from the electronics-friendly summer stand.

Farber has already taken notes on how she can improve her standings for next summer.

According to her mother, these valuable moments are a motivation for the young man to become an entrepreneur one day.

“She’s learning how to do business. She’s learning how to work with clients, how to save for her business and also keep a little bit for herself,” Farber said.

“Lilly has her own piggy bank set aside for when she turns 18. We are going to double what is in there at that time.”

And for reasons as sweet as Hartsfield’s, Lilly already has a philanthropic bent when it comes to managing her profits. She’s donated a portion of her earnings to a cerebral palsy charity in honor of her 3-year-old brother who has the condition.

Mother Doreen said: “We couldn’t be more proud of her.”