I was quite long in the tooth before I discovered that short sleeved shirts were regarded as naff by those in the know (I am talking civvie shirts now). Naff or not, I couldn't give a damn. This summer I have been wearing short sleeved shirts every day for weeks (cant abide tee shirts, polo shirts,etc) and couldn't be bothered with the faff of rolling up sleeves all the time, particularly as the damned things always come down at some stage and have to be rolled up again.
I remember my first Van Heusen collar attached RAF shirts with epaulettes bought in a shop in Cirencester in the summer of 1965 for 42/6d. Much relief that I could get out of No 1, even though we still had to wear the tie in those days.