Missing the point

Overheard at my local gym:

Woman: I'm trying to lift the weight on this machine but it's too difficult.
Trainer: Well, try a lighter weight then.
Woman: Ok, but what can I do to get better at it?
Trainer: What do you mean?
Woman: How do I train this muscle so that I can lift this weight?
Trainer: ...

I wonder what she thought the point of these machines was in the first place.