Sorry this may come across silly but my 19 month old is minded at home and no brothers or sisters. I bring him to playgroups etc brought his this morning. He was sitting on the ground playingand a 9 or 10 month old latched on to him and starting touching his hair (he has a nice head of hair) she grabbed and my son didn't move away or hit back, he's not expecting to be hurt or attacked, she pulled and he started crying and I rushed over and the baby had a load of hairs clasped in one hand, didn't see the either other hand. My son was upset but ok after a minute. He has no bald patches but I know from my own hair and waxing that pulled hair doesn't always grow back. I'm really sad that this happened because I mind my son really well and this was one time I decided not to rush in and let it play out as he needs to socialise with other children but I feel like I let him down.