most happy and healthy kids have a unique desire to learn and trying to suppress that is unhealthy
things like screen time, finish your plate, etc
screen time is just a limit on time to learn if the kid is using it for the right purposes which you should teach them to
“finish your plate” I was never told that as a kid and I devour anything that is given to me
Age is an important factor though because it takes time. Some people develop faster than others, but it take time and so younger people will be less wise. Sure there are some wiser at 20 than others at 40 - but the general trend that a 40 year old is wiser than a 20 year old is true.