Rave environment question

Hi, my gf is going to a rave this month with her best friend's friend group. I can't go because of multiple reasons, I can't stand loud music, crowded places and I have work. Me personally have never been to a rave, but yk I have heard bad things about it (dr*gs, drinking,...), now I don't want to be overthinking and telling her not to go because of my imagination thoughts. So, I come here to ask you guys about the real environment at a rave, will there be a lot of touching when people dancing? I have 100% trust on her that she will not do any dr*g but I'm not sure about other people in her group.

She said she wants to go because she wants to enjoy what her best friend always loves to do and this is my gf's first rave too.