You would be good candidate for hair transplant.Why not start a treatment,you would be a good responder .To your question i would shave it it is very obvious that you are balding.You are like Norwood 3
Not bad at all. Even though we cannot see your eyes you look like you would have a handsome face and your hair line would not take away from that. You could do massage, derma roller, finasteride or just hair transplants there. That area is good for transplants.
Slightly receded but it looks fine honestly. The rest of your hair looks very thick, so theres a good chance it's just a maturing hairline. But you're clearly a good looking guy. Hair wont matter much in the long run.