听力原文：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. 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. What is the conversation mainly about?