These will make a wonderful first string of real pearls for my granddaughter. She is turning 13 she is very small so these will be perfect for her.  I don't think that if a child is a larger size they would be long enough to be attractive on them but for small young women they are perfect.  I think that when she is older that she will be able to double them and use them for a bracelet if she doesn't want a choker style of necklace or doesn't want to add more and restring them for a longer strand.