Its hard to quantify if you arent of that mind set.
Britain has always been, for thousands of years, a war mongering nation where young lads could go and scrap all over the world in the name of fighting for your country.
Lads lining up to fight in WW1, lying about their age, also in the name of empire building and fighting nazism. But often just an excuse to scrap.
National service enabled it. Off to Aden, korea, wherever, off for a scrap.
Then with the end of national service, the desire for young lads to fight was still there so it manifested itself in mods/rockers fighting on brighton beach, then into football hooliganism. Lads just wanted to fight and found an excuse and a way.
Thank fully these days the need doesnt seem to be there. But its just how it was back then and still young men want to fight.