Where do you go to learn to become a kids and family entertainer?
If you want to be a doctor you goto med school, if you want to be a business professional you take an MBA, if you think about it, most professions have some type of formal training.
The typical children's entertainer has to find out what works by trial and error. Fellow entertainers are sometimes reluctant to share the formulas that work meaning that entertaining kids is difficult niche to get into.
A Worlds First for Kids and Family Entertainers
Kids Entertainer Hub