In the grand scheme of things, not feeling in the mood for scritches isn't much. He might be molting and not feeling in the mood. Just like sometimes you don't want hugs or kisses, he might not be in the mood that day or that week.
At his age, clipping his wings would have a significant impact on the rest of his life - we're talking psychological and physiological impact.
Birds need to fledge and fly first before clipping. If you clip before that, then they tend to be more insecure since they don't have that ability to fly and learn how to navigate with full use of their body, which sometimes results in lashing out later because they can't escape situations naturally. It also means that their muscles aren't as developed as they should be. Of course, you can work on this years later. But avian health is very dependent on their wings bolstering their respiratory (and therefore also heart health) system. For some birds, clipping their wings also triggers plucking - it has that kind of impact.
Some birds are ok with it and have come to terms with it. But almost every breeder will agree to let the bird fledge first before clipping.
He's a baby. Let him learn and grow first. His personality will be changing all the way past puberty. It's ok. Just follow his lead. The only time clipping is mandatory is, say dive bombing - something we've experienced and not clipped even then.
) liked watching YT vids of other Grey's. She would bob her head,dance in circles,and mumble to them 
