I volunteered as tail runner at our local parkrun a few weeks ago.
About a third of the way round there was a bloke in his thirties with a lad who was about nine or ten. The kid obviously didn't want to be there, but his dad kept pushing him with promises of, "come on, do it today and you never have to do it again."
A few minutes later he finally gave in and they turned back, I doubt we'll be seeing them again.
My lad was the same, we used to go out every weekend until he discovered video games, I'll not push it but the bike's still sat there if ever he changes his mind.