I've been a Girl Scout leader for 6 years now, and my husband has been my Co-Leader for 5 out of those 6. He has also been my cookie manager for my troop. He is there with me for everything that he can be. The only thing is that he doesn't go camping with us, since it is too much to put him in another cabin/tent and bathroom arrangements. No one has said anything about him being around and most of the parents thinks its great that he wants to help even though his daughter is in another troop and we are working the brownies. We always have other females around so there is just more than him and I with the girls at all times.
I think that it is great that dad, or men in general want to help with their daughter's troop in any compasity.