seriously you people need to stop being pussies... we own 2, 15 footers.... both used... just make sure to inspect it for tears, rust, etc... We use ours all the time... hell, I have pictures of my daughter and like 10 friends on it.... just don't be stupid and you'll be fine... hell, my daughter fell off one time by accident, she was fine... kids break bones, they will cry, they will scrape their knees... it's not the dangerous blood bath people seem to think it is anymore... Let kids be kids.. if they want to do something outside that causes them to move around, let them... it's a hell of a lot better than sitting in front of a TV playing video games.