I shave my head every now and then. I'm non-binary btw. I have psoriasis and allowing the air and light to reach my scalp is generally good for the skin.I last shaved it 6 months ago,so it's about 2" on top and I've trimmed it pretty short at the back.
Notice I said "I" cut it. Going to the hairdressers is a miserable task. They always expect you to engage in trivial conversation with them,I never like how it looks after they cut it and you have to pay them for that misery.I bend over the toilet and cut my own hair (currently using a pair of nail scissors as that's the best I can come up with). Oh and it's red.