I think this thread has brought up a very good point and that is hakaras hatov to parents and that children need to learn to be both responsible and respectful. Children need to learn independence and not to want or expect too much or even everything from their parents. And children need to learn not to make excuses for doing that.
The point of working and earning your own money is to pay your own way. It is always nice when parents are generous especially when they DON’T always have the means to do so. But what is nicer is when kids know to appreciate it and show hakaros hatov and not take it for granted.