I have just unearthed this pic from the late 1970s. Short shorts, especially denim ones, with white socks had started to become common as casual wear for young men in the middle 1970s.
Contrary to what young people are taught to think now, the 1970s were a great decade -- certainly the best decade of my life. For most people in the real world the 1970s, not the 1960s as in popular myth, were the decade in which we all had a lot of fun. Young men, gay and straight, were much more attractive both sexually and aesthetically than they are now.
With hindsight it was a golden age, before Mrs Thatcher, and AIDS, came along to spoil everything.
Political upheavals -- Heath's three-day week, Callaghan's winter of discontent (much overblown in the media), the IMF crisis and the supposedly "ungovernable Britain" -- impinged very little on real life, as far as I recall. It gives a completely false view of the reality to look at the decade purely or even mainly in those terms.
Here I am leaning on my trusty old green VW Beetle. I was living in the Pennines and felt that I needed a car because the rail service there was rather sporadic (it is much better nowadays).
I went completely and permanently car-free in 1980 when I moved back to London. Since then I have lived in Luxembourg and Brussels, with some longish stays in Kuala Lumpur, and now London again. At no point did I need a motorcar. In cities, they are just an encumbrance. It still feels marvellous to be liberated from the burden of possessing one.
I wouldn't go around in shorts like this at my age now, but the sad thing is that young men don't do so now either. They would look very much better if they did.