Proving someone will pay before you spend anything.
Before anyone spends a dollar, find out whether one person will actually pay.
This is the step kids skip, and adults skip it too. Buying supplies feels productive and asking ten people a question feels slow, so most first businesses arrive fully equipped and completely unwanted. Every starter guide in the library opens with a free test for exactly that reason.
A test is not a survey. Asking someone whether they like an idea gets you a polite yes. Asking whether they would pay this Saturday, at this price, gets you the truth.
Five questions about age, budget, time, and what they actually like doing. Four matched ideas at the end, free.
Take the quizA program from Founder's Best Friend. Built for kids 8 to 18 who want something of their own.