Other peoples influences

I think I am probably more overprotective than other parents but I do find it difficult to let Isabella be looked after by people that may not care as much for her as I do for a whole day. Is this wrong? Should I be letting other people influence her and manage her? I understand teachers have this responsibility but when we work on set she is looked after by a chaperone. We have had various chaperones throughout her working year. This chaperone is responsible for her well being whenever on set. When your child belongs to you, no-one looks after them like you do. So when should you stop this and pass them over. I never had a problem when she was at Nursery, I believed that those adults may have known more about bringing her up than I did, however ever since a couple of years ago I believe I should be there to protect her for as long as I can. I can also speak from experience from the other side having been a teacher and someone in charge of children. When you don't have children and have never experienced your own, you do look after them and treat them in a very different way from when you have had one and experienced it as your own flesh and blood. Basically I am trying to say that as someone who is responsible for a child I believe that until you have your own you do not really understand children and how they work. I am at the moment fairly able to understand most children up to the age of six howvever I have no idea about children older than six.