I think a good step is giving 50 riders real time on a good track like what JO has said is a possibility. I'll admit that 25$ on the kids track is a bit steep, but I'm lucky enough to have options on where I can take my kids.
Once a kid starts racing, even on a PW50, they should be able to handle a big track. When I raced a PW50 there were no kid tracks. You raced the national track at Kenworthys, Honda Hills, COCR....where ever. Probably part of the reason Ohio dominated the 50 class back then. Racing the big track at places like Briarcliff and Malvern is what kids need.
One thing that is funny is that people will complain about 15$, but not think about all the money they blow. I talked to Glen at Sparks rc track about raising his price from 10-15$. He said he tried and people got mad. .....but they were probably the same people walking in with 2000$ worth of rc cars. Same people who throw 65$ at tires and 250$ for new electronics, but lose their mind over paying 5$ more for all day access to a prepped and heated indoor rc track.