I was watching the video of a father and daughter duo the other day singing one of Adele's song and it was very cute. The father was playing the guitar and daughter was singing with him. The little girls is only 4 or 5 years old and she can really hit the high notes. I think it's an advantage if you expose your child to the things that he or she is interested in doing at an early age. I just love watching little kids singing with their parents, it's a joy and it's very inspiring. I think that if your child is interested in playing a guitar, an affordable hagstrom guitars from guitar center could be a great start.