Kids learn fast and are less afraid to fail, so they can start new things more easily.
That also depends on your mindset and expectations. I've read a journal of master painter who, after roughly 40 years of doing art, still often felt frustrated and defeated after spending a day at the easel (even though 99% of people who paint would kill to be able to produce a painting he worked on).
Also, Polish poet Barańczak once said: "you know what they call a guy who enjoys writing? A hack".
Even when I get rewarded in things that I took up on my own, I feel that the rewards are quite measly compared to just having a normal healthy mental and physical existence. And these are interests that I took up on my own, I wonder how bad it would be for someone pushed by their parents.
But then again, I guess if someone grows up not having anything they're good at, they might blame their parents for not pushing them. Parenting must be very difficult.
Federer - 8. Nadal/Djokovic - 4. S. Williams - 3. L. Hamilton - 8. M. Schumacher - 6. Verstappen - 4. Phelps - 7. Messi - 4. C. Ronaldo - 7. M. Carlsen - 5. Lebron - 9. S. Curry - 6
Some people are just lucky to be good at the things they love doing. The others have to be content with getting paid for the things that they're good at to pay for the things that they love doing.
The wires you speak of come from time, practice, effort and habit - i.e the original meaning of the term kung fu.
I’ve made life choices that now result in having uninterrupted blocks of time for learning to play an instrument in my thirties. I’m surprised at how quickly some things become completely effortless when you have time to practice every day.
I started classical piano in primary school all the way up until I turned 17. I thought I played ok... but I started lessons again about 6 months ago (I'm turning 40 this weekend) and now that I actually want to play rather than be forced to play from tiger parents, I can honestly say that I'm learning 100 times faster than when I was a kid.
Also, now that I'm actually practicing multiple times a week rather than 30 minutes before my lesson (like when I did when I was a kid), my sight reading is blowing my mind. I could only wish to read like I do today than when I did in my teens.
But like going to the gym, the hard part is getting there. Once I'm playing, I look down at my watch and it's been over 2 hours!
My main frustration is around finding people to play with.
People my age seem to have been playing since they were kids and have high skill expectations.
Amateurs looking for people to play with seem much younger, and in it for the fun of hanging out as much as playing.