Just a stray thought as I have a three year old at home. I'd like for him to study a martial art when he gets older to gain some of the obvious advantages from the activity. But should I force him to study it if he doesn't want to?
My sensei by his own words did with his sons. Of the three, two are still active in karate, but I gather there was some friction along the way with at least 1 of them.
As a father of an only child, I try to strike a balance between being too strict and being too permissive. I only want the best for my son.
IMHO, I think its a bad idea to force kids to train. I've seen this many times....parent brings kid in for intro lesson, kid has the attention span of a fly, showing obvious disinterest. I tell the parent that perhaps they should wait, but they want to try anyways. Kid shows no interest in class, and takes away from the other students learning. Parent suggests private lessons. Of course, the same result happens. Eventualy the parent does what they should've done in the first place....wait until the child has more interest.