Bingo.
And how many people "make it"?
I will add some more:
How many ones are forced by the parents just because it looks good when trying to enter a prestigious school or because of someone who was able to get there, so all parents think that their own kid will do to?
In Portugal because of the Football (or Soccer if you are in the other side of the pond) star Cristiano Ronaldo, now every father put his kid in football, even if the kid never was interested in Football or even is that good on it. They even have some fights during games between parents because of that. I know cases of kids who got his parents badmouthing them and calling them stupid or other kind of proper insults because the kid is just not fit for football, it can't really be better than lower average.
You can't ask a kid that have talent to music to try to place itself in a National Football Team. Even if you have a lot of practice that doesn't mean you are going to be better than average. Now you ask, what kind of talent then the kid have if you don't make him try new things? How about let him try things and see what he really likes to do. If he doesn't like, let him go and try a new thing. Naturally he will find something he likes and wants to keep doing.
With me it was IT and Electronics/Electricity, but my mom also tried me to do sports (swimming) and at school I had the chance of doing all kind of sports from football, handball, basketball, baseball, volleyball and even track running but none of them stuck with me. But I had friends who were good at basketball and even played in a regional team, winning some championships, and one of them were a player who were scouted to the Barcelona FC sub-18 football team. But because of an operation to his knee he stopped playing football at 24 years old. TToday, after he finished his Human Resources Degree,he is well positioned in a known supermarket retail company. He was good with football, he even said that, but even when he was doing that, he continued studying to Human Resources, his true call.
Competition in every scope and activity is super fierce, kids nowardays should go with the mentality that yes, they can be very good in a field, but that doesn't mean that others will not be as good or better. Then it's up to them if they want to keep trying and improve or if they will hit a wall that they can't climb. There should not be a shame into fail, the shame is to not even try.
But now someone asks, who I am to say something when I don't even have kids? Well, I'm waiting for mine to born (End of January) and probably my thinking will change after that, as someone without experience as a father, I may be totally wrong in what I written above. But I will try to remember what I've done and adjust in accordance of what I want for my kid. For him/her to find something that he/she likes, and give him/her the education and the means to pursuit it.