This isn't exactly on thread, but I think it is relevant. There are new plans, in the UK at least, for a drive to encourage singing in schools...and from the enjoyment point of view as well as teaching musical skills. It is a free programme and anyone can use the programme, if they have access to the net . I will post the link when I find it, I have only just learnt of the programme recently, so I am not sure how good or useful it will be until I have looked at it more.
From personal experience, I find many children get self aware and embarrassed about singing, by about 10/11. Peer pressure that music/singing is not 'cool' can be terrible at that age BUT it can be overcome if the children's own musical likes and dislikes are considered valid and children are taught positively. In the last week, alone, I heard 2 ex-pupils, separately performing their own compositions and songs, at local clubs and music nights. I also received a cd from a young woman I remember at age 10, who was terrified of singing the lead role in a school musical...after half an hour of crying one afternoon, she plucked up courage and did brilliantly at the evening performance. That experience gave her the confidence to continue with her music and make her own cd. I know the music teachers of all three quite well and they are all of the opinion that music is wonderful and should be open to all, not just the most able. Music is important in their schools and fun, high in priority.
I believe that anyone out there involved with music and singing with children, should try foster a positive attitude towards music and singing and respect for others 'having a go'.)....In my view, it really does make the difference between giving someone the confidence to relax and sing to the best of their ability. The children I work with, know what music I do out of school and are interested in it. They also bring in their own ideas and their favourite music to share with others. I think it fosters respect and tolerance for each other.