Good call. IMO: The opposite extreme is just as bad - trying to befriend the kids. You don't need to be their jailor and you don't need to be their buddy. Neither will gain respect. The students will respect someone who tries to teach them as an adult teacher to a youth student. Any attempt at any other relationship is bound to lead to grief.
Shalom.
If a frog had wings he wouldn't bump his butt when he hops.