My kids have been through 4 schools so far, between relocating, then damm small towns with very few home schools beyond grade 6, French immersion transfer and then the whole reconstruction of the French and English school designations meaning another move, and every one of them has swings on them. Most school playgrounds are also public parks so I'm not sure where you have seen schools with no swings unless it is the catholic board but I know in Niagara and Halton Region most public school playgrounds have swings. Next they will want to take monkey bars out......I know numerous kids who have fallen off those and broken their arm but no serious injuries from swings.....painful no doubt but no visits to the emergency room that's for sure. If we take things away we may be preventing them from being hurt that way but not teaching them how to be safe as a result.