1.When I was a nanny and they had a pool where the kids were out there every day one learned at 2, one learned at 3, another one learned at 6. My granddaughter learned at 7 my grandson is 5 1/2 and has not even started trying yet.
2. We have raced in BMX against a boy who was 3. One must be perfectly able to ride and manage a bike without training wheels before the are able to race. This little boy came in 3rd out of all the kids in his age group. I have one grandson who is in 3rd grade and still can't ride well.
3. The pretty much start really trying in kindergarten or pre-school if they are sent. They don't really master it until they are a bit older in my opinion.
4. Don't know. But I would think as early as they were exposed to it and had the muscle strength to manage the ski's and other stuff needed to be successful. It takes a lot of different muscle groups and physical strength to do this. Not saying they can't, they just have to be exposed so they can build the tolerance and develop the skills.
5. Some prodigy's have composed musical pieces as young 3. Some get to take a string instrument in elementary school and in middle school can take a band instrument. By 6th or 7th grade they should have it as an option for sure. Most kids start piano as soon as they can read well, so by the beginning of 1st grade or during that year.
6. Soccer starts around 4, football around 5, tennis around 6, basketball around 3rd grade? Maybe a little older. Dribbling the ball and running is a physical development thing and they may not have the coordination to do it without bashing head first into the floor much earlier.
T-Ball starts at age 3 or 4, it's basically for them to sit and dig in the dirt, pick flowers, turn cartwheels, try to stand on their heads, run around chasing butterflies, and mom and dad to get a really cute pictures, make mom, dad, and other adults giggle about how cute they are, all the while the ball is rolling between their feet....lol.
At this age it is not about the sport, it is about the learning to listen to someone besides mom or dad, it's about seeing they have someone else doing the same thing and starting to work as a team, about remembering how to do something the same time each time they do it, learning to decide if it's their turn to go after the ball or not, they are not "playing a sport" they are learning how to learn a sport.
Does that make sense???
They are learning "how to learn" to play a sport.
Learning how to listen and act out what they were told to do takes lot of brain development. It takes them being able to stand still, listen, process what they thought they heard, deciding what that information means for them to do, how to do those actions correctly, all the while getting up and going to do it.
They have to have time to learn these things and as they are learning these things their game is improving. They are able to hit the ball on the T then start to make contact with it when the coach pitches it. They get lots of cheers so they try to do it again, they miss most of the time but they get better each time they try or work on it.
Sports teaches so many things. Any kind of sport, riding bikes, T-Ball, soccer, gymnastics, dance, all activities take time to learn basic skills. They learn to listen and perform what they are asked to do.
At the younger ages it is for fun and learning. Not competition or awards.