The question is, did you teach your young son to lift the seat or to try to aim through it?
You know those carpet covers for the toilet lid? I hate them. If you have one of them installed, the seat won't stay up unless it is held. And what man can pee using only one hand? And wives get mad when there are sprinkles on the seat.
I bought my wife a high gloss oak seat and lid, not she doesn't want to cover it up.
It's not lifting the seat up or down that is the issue, it's that he has a bent penis that causes him to miss the whole bowl and hit the wall that is the problem. He thinks he can just stand there without aiming it.