Koheshi123 yes, the research shows that ALL children, including those who are good at sport, participate more and for longer through their childhood is the emphasis isn't on competition.
Of course there should be opportunities to compete for children who want to, but this shouldn't be the primary focus on childhood physical exercise.
When the head of my dc's school came in, she decided to select a handful of children for lots of extra coaching primarily so that she could have the reflected glory of coming top of some inter-school sports league. There are about 25 of them chosen out of KS2, so out of approx 240 children.
Now, guess which children have got better at sport and are up for giving anything a go, and which ones think of themselves as 'not good' at sport?
My dd was selected for competitions without even having to do trials - she didn't do many because she found all the pressure too much. She's also not particularly competitive, but just enjoys physical activity. This was not well received. This put her off any sort of organised sport for along time.
My ds wasn't selected, despite having represented the school at one of the sports. Although he's not bothered, it's notable that he's lost interest in the particular sport that he used to be fantastic at and love.
It hasn't done either of them any good, nor the vast majority of children. I have tried to have a number of conversations with the head about it, but she can't see beyond the fact that she wants her school to top the league.
It's no skin off my nose - my children do plenty out of school. But for many, school is the place where people develop their perception of themselves as someone who likes or dislikes sport, or someone who is good at or not good at sport which will influence their health, well-being and social confidence throughout their life.