I don't know. We wear them back in my home sphere, but mostly we wear dresses. I guess it's sort of the same here, but people are nosy and say things to teenagers about them.
A trolley is a — it's like a coach only there isn't a horse pulling it. There's a mechanical engine pulling it and someone driving it. You hop on and off wherever you are and then hop off when you get to where you want to go.