What is the conversation mainly about?

M: Why are you looking at the classified ads? Are you going to buy a car?
W: Hardly; you know I can’t drive. My parents won’t let me learn. Actually, I’m looking for a flat to rent. [8B]I’m having trouble at home again.
M: What’s the trouble this time?
W: Oh, it’s stupid really. It started with that barbecue weeks ago. They wouldn’t even let me go to that!
M: Why not?
W: Don’t know. It’s just their way. They mean well, I suppose, but they won’t let me do anything by myself.
M: What about your brother?
W: Oh, they let him do anything he wants to.
M: Doesn’t sound fair. Hmm, but they let you choose your own job.
W: Big deal! But they make me hand over all my money at the end of every week. I get pocket money.
M: Seems a bit tough.
W: Oh, that’s not the only thing. Even at the weekends they make me go everywhere with them. They won’t let me go anywhere with my friends.
M: Do they want you to be an old maid? Are they scared you might meet someone nice and get married?
W: No. They want me to marry the son of a friend of theirs. I don’t want to.
M: Oh! So that’s the real trouble, is it?
W: Yeah, I’m really scared my father will make me marry this guy.
M: Look, don’t be stupid. That’s one thing no one can make you do.
W: Well, for my sake, I hope you’re right.