Some things get better with age, but eyes aren't one of them. Just appreciate those young eyes for a while before you scope things for them. My pellet gun went from open sights to a peep to a scope and back to the peep again because it more closely matched the limited range of the pellet gun. It also nearly doubled the sighting radius from the barrel mounted open sight. A scope is going to add some weight as well and youngsters won't appreciate shooting at long range anyway. I still remember an unlucky red squirrel way up in the top of a big white pine that I gunned as a kid with my iron sighted Winchester M62A. Scopes later on made shooting almost too easy, but the rifles were heavier and harder to carry.
