Last year I took Cam to the Milton BMX track on his Strider balance bike to expose him to the sport and see what he thought. Turns out he loved it! We came back for a local race, he won a trophy and was hooked. I picked up a cruiser (24" wheels. Standard are 20") race bike to get back into racing BMX for the first time since I was 8.
I picked it up pretty quick. I never quit riding bikes just transitioned to riding mostly street, skateparks and dirt jumps on a hard tail 26" bike. I managed the jumps good but getting fast is still a work in progress.