I'm fairly sure the answer is yes, but that's really just the intro.
Louis (5) saw his first bmx racing on Sunday (Perry Barr, Birmingham - just down the road from Granny's house).
He seemed to love it, but he gets enthusiatic about a lot of things. It's a closed book to me - I don't even particularly like it. But if he did I wouldn't mind encouraging him. It doesn't look as though it needs to be very expensive (unless you really get into it, and do it around the country, I suppose).
It might just be the case that I get him a half decent 2nd hand bike that he rides a bit, but doesn't get the bug for competing.
I'm just wondering whether anyone else has either been into bmx, or has/knows a kid/anyone who is, and what their experience was/is.