Here's a video rant I just did based on a question I heard watching the Gary Vee podcast, "who the F*CK is THEY? It discusses why people are so worried about what "THEY" think, regardless of who "THEY" are. Give it a watch and let me know your thoughts.
You're right on many levels; however, it's instinctive for humans to seek approval of others in our lives. We choose our tribes whether familial, professional, personal, beliefs, etc., and we want to fit in. It's a basic human condition.
How we choose to be accepted is up to us. As it happens, physical appearance drives so many aspects of our lives. Think of our own reaction when we see that smoking hot gal walks into a bar. In that case WE'RE part of the THEY.
Sure, some will give it up and become isolationists and outcasts from society, but that's rarely a route for happiness.
At the end of the day, I'm happy as sh*t some gals find my bald ass head attractive! LOL