Depends on what your expectations are. I think a lot of people think they are scams because your not a model right out the door, but if you want to teach your daughter manners, etiquette, how to set a table fancy like, and how to put on make up and do her hair without putting on way too much then it's a good place to go. For the individual school you want, I don't know. I went to Millie Lewis Modeling School when I was younger and it taught me about make up, colors for your skin tone, how to do your hair without frying it to death, how to take pictures (like you don't wear graphics abstract shirts), how to walk "like a lady", how to sit, how to set a table all fancy, etc. It depends what you want and expect from a school. They took pictures of me and my parents refused to buy them which was a downer, but they let me have 3 for free (but that's back in the older days, I doubt schools do that now).
My friend took a modeling type class when she was a teen because her mom wanted her to know how to do her make up without looking trashy lol.
If they are trying to talk you into it, I'd be wary. Seems like they are trying to play your emotions to get some money out of you, so think carefully.