I am fully aware of the red sock usage in the sixties, amongst other things due to yourself and to this lovely web site:
https://www.unitedkits.com/kits/seasons/1878.php
Notwithstanding that, and the fact that United wore red socks for one season after first world war as well, 20-21 I think, and some bastard socks a few seasons back, United had worn black sox since the phoenix first rose in 1902 up until 1960, and from 1971 up until 2024. That’s about a hundred and ten years (!). You of course know all this, but it may be less known to others.
The ‘experiment’ in the sixties with first white and then interchangeably red socks, has been explained both as a tactical device to facilitate vision in the growing number of floodlights at the time, and as a ploy to bring newness and optimism to the club to avoid black after the WWI and the München air crash. Which is true, or both, I don’t know, but I think it’s fair to say change of sock colours was a smaller issue back then, as players could sometime be seen wearing different versions of socks in the same game.
The identity of particular football colours strengthened and locked heavily from the late sixties and upwards, probably fuelled by the spread of colour use in print, TV, and the development of merchandize markets. For most people, all red IS Liverpool, like a National Team uniform or an official flag, even if they didn’t use that combination before in the mid sixties (possibly inspired by a Man Utd EC game on TV?). Red shirt, white shorts, red socks became Nottingham Forest to me and many in the eighties, to others it has been Swindon Town, Benfica, Demark or a host of other teams. Man Uniteds red, white and black is a fairly unusual combination, with over 110 years tradition. To me it’s effect is like a national flag, and not something to be tampered with to sell one million extra socks or because some people just like newness in any shape or form. I love newness and variation, but I think some traditions are important as well. So red socks, begone! For me, we might as well put a point on it and throw in the red shorts we used in the EC semis in 1957 or 58 then, and look falsely perturbed when most people say ‘why are you wearing a Liverpool kit?’
Again, you know all this, I just used your post as a point departure for a rant