I showed these photos of my kids to a colleague and she said in disbelief "You let your kids play in the leaves? Do you know how much dust is in it?" I told her that my kids enjoy it and that a little dust won't hurt them. What matters to me is the fact that they can enjoy what mother nature has to offer. I personally think that this is better than letting your kids just sit in front of the TV or playing games. This is a good exercise for them both physically and emotionally.