According to German philosopher Immanuel Kant, all human knowledge begins with intuitions, proceeds from thence to concepts, and ends with ideas. Participants of the summer training on social entrepreneurship for youth and teenagers "SEI Youth. My first business" started with ideas. With the help of coaches, last summer 30 schoolchildren from different cities of the country designed concept plans for six business ideas. Now, after six months, we decided to analyze what and how they have managed to implement.