Correct or A Prude?

While I was at the gym (24 Hour Fitness) earlier today, something happened that is making me ask "Was I right, or am I a prude?"

I had finished my work out and had gone into the locker room to change out of my gym clothes and into my regular clothes like I always do, when another one of the club members brought his young daughter (3 to 4 years old) into the men's locker room.

It just didn't seem right to me somehow, bringing a small girl like that into an area where fully grown men are in various states of undress.

I spoke to the manager about it, but he just looked at me like I was some sort of crazy person and said he would look into it.

Now, I ask you, was I right to say something, or am I just being a prude?