Why was I mistreated for 7 years because of a flat cap but they turned a blind eye to Doctor Harry?

I wore a flat cap for 7 years in Darwin and because I was 22 years old I put up with staring, people rudely staring out of cars, name calling and death threats. I was even attacked twice by angry teens determined to terrorise me because they hate flat caps yet Doctor Harry wears his patchwork Tweed and no staring, no names nor threats. Why did he get Special treatment? because he was in his 40's? flat caps are NOT an elderly mans style. What is with this insane stereotyping?