It's pretty obvious that Noah has a lot of hair. What's not as obvious is how fast it grows. I'm not really bothered by his long hair, but he has a tendency to grab and pull his own hair out. If we leave his hair too long, he'll start getting weird bald patches around his ears where he can easily reach (did you know that Noah still can't touch the very top of his head).
Really, though, the main reason why I want to keep Noah's hair short is because I don't want people to mistaken him for a girl. Him mom already likes to buy girl colored socks and has no problems shopping in the girls' section for cheap clothes... even if they're pretty obviously (to me at least) girl themed clothes.