There are adults in public parks whereas you do not see too many around schools. The first thing you know you will find that these people were better off in jail. I think it is a good step in the right direction, but let us not make it too confining or these people will almost be prisoners whether they are in or out. That is the difficulty as I see it. The thought is that there are children in great numbers around school grounds and playgrounds, and very few adults, but in parks you usually find older people and the difficulties do not arise in the same way.