I wouldn't say that all parents are pushy but, I know, for a fact that some are. My mother wasn't one of them, but I went to one of Australia's top acting schools for children, when I was in my teens. (not teenager now lol).
When people think, pushy parents, they think of acting, singing and dancing etc., etc.. What about Martina Hingis????What about those kids are given 2 options, "when you grow up you have to be a doctor or a lawyer"? What about those kids who are made to feel bad, because they're not good at maths?
Whatever, career a parent is pushing there kids into, it all comes down to the parents self esteem isssues, and how they felt about themselves growing up.
If a child genuinely has talent (and I've seen alot that don't), and the parents agree to let them pursue that path, then give them the run down on the hours they'd have to work, the pressure and expectations. Let them start small. If they still want to do it, then let them (within reason- don't tell them that they will be better people for it). Don't treat your kids like a new Mercedes, just purchased for "show off" value. Don't think it will be a problem solver either.
If your kids don't have talent and you're pushing them for your own ego's sake, then they will end up hating you. If you don't like them for who they are, they will resent you.
We weren't all made to be rocket scientists, pop stars or movie stars (or doctors and lawyers). Encourage your kids to be, who they are meant to be and your relationship will be worth more than gold.
If they're not exceptional at school, but they're good at manual stuff, don't forget tradespeople. They earn good money and something always needs to be built or unblocked. I haven't met a poor plumber/ electrician.
By they way.........no I didn't pursue an acting career, I'm a qualified Medical Laboratory assistant, which was my choosing. My current job, is stay-at-home mum which I love to bits........it's the best job, I've ever had. Though, I tested as having an IQ in the 99th percentile lol.