I have never understood why lads and men {of all shapes and sizes} go out of an evening wearing football jerseys!
You wouldn't go out in your overalls at night, unless you've JUST finished work, or that's the only clothes you possess.
Professional footballers don't go out at night with a football jersey on and they PLAY football, to them it's overalls, they would sooner watch some overweight wannabee splash out for one then walk round in it giving the clubs sponsor free advertising.
I like the music of Mozart but I wouldn't go out wearing knee length breeches and a powdered wig.
And it's not as though these shirts are cheap {unless it's a knock off} and most of the time clubs change their "strip" so an ardent fan is constantly shelling out for them.