I agree with many of the above comments. Is my DGS behaving as he is because he’s a teenager or because of his ASD. We love him to bits. He is funny, loving, great sense of humour, stubborn, pedantic so many different things. What has helped us as grandparents is to understand when he was younger that he was not just being naughty, being stroppy, sulky etc but that he was struggling with emotions that we could not understand. Once the diagnosis was made (we had no idea) and we had read up more about it, it helped us to think more about things from his point of view. Why everything he did had to be in colour/size order. Things could not just be tidied away until they conformed to his specific requirements. The traits we though were stubbornness were things that he felt deeply about and he couldn’t cope with those feelings and us trying to make him behave as we thought he should only made things worse. The diagnosis/label whatever you call it gave us the chance to show him that we care. We love him as he is. We are so proud of him and all he has achieved. When young he insisted on taking off items of clothing while we were trying to get him dressed to go out. Without the diagnosis how could we understand the torture he felt at cotton on his skin. How his socks used to drive him mad with irritation. Drying his hair with a towel hurt his head. None of these things would have occurred to us. Diagnosis isn’t everything but sometimes it helps. We are lucky our DGS can cope with day to day life. Many ASD children cannot.