[giva]

The problem with training wheels is that they train how to ride a quad, not a bike. On a quad, when you turn the handlebar to the left, you go to the left. On a bike, you fall to the right.

[manwithaplan]

I vaguely remember my training wheels were set a bit higher and not touching the ground unless I was leaning a lot. So this setup would aid training to ride properly.

[geocrasher]

This is exactly the case.