No you're not alone in that thought Nonnie - I wrote 'it's a start'. Common sense dictates that you introduce change gradually.
Re school sports, that depends on the school. I've worked with schools with amazing ranges of PE provision not just team sports, from sailing to golf to Zumba to yoga and everything in between. The emphasis has been on getting the children moving, and encouraging them to find something that they might enjoy outside of school as well.
Many sports clubs provide free tuition to school-aged children in return for the use of the school hall for their adult classes. Examples include fencing, marshal arts, badminton. More schools are finding that teenage girls, a group traditionally difficult to motivate, will turn up for dance classes - disco, tap, street dance, etc..