I'm nearly 50, so have seen a few decades. When I was young, if you visited a small handful of rough or run down places, you might see a few drunks or 'miscreants' or young lads messing around, but never anything really threatening or visible.
So it might just be me, and I've led a fairly quiet life, but there seem to be a hell of a lot more issues out there now, especially in ex industrial places and urban towns around the UK. I see a lot more homeless people, many who have evident addiction issues: women as much as men, and there are more gangs of teens smashing stuff, shouting, fighting, etc.
However, in many areas you hear that crime rates have dropped over the years. Perhaps it depends where you go, and many people in bad areas won't report to the police anyway.
I often travel with work, and see this across the uk, much more dereliction and dying high streets, and in many towns there's literally rubbish piling up along embankments and street corners that the councils never clear up. And it's not simple enough to say it's because these are run down areas - they were run down decades ago but not like this.
I know there are many lovely places, and I've lived in a few of those, too, and some go downhill a bit, some remain safe. So if you don't get out a lot you might not know it's going on? I don't know. I asked a few older friends recently had they noticed and they did admit that there were elements of this knocking around in the 70's, 80's, etc, but not to this extent.
How did it become worse? What is your opinion? What could be done to help? Are people generally poorer than 20 yrs ago? This is presuming poverty as a causation - is it? The news headlines often affirm this, but I don't really know across the board. I know there are a lot of very closed off towns that might make these issues worse due to people rarely leaving them, but is the issue more cultural than economical?
I think people are generally angrier and less satisfied on the whole, we are all a lot more stressed out even if some of us report we are doing great and don't notice it! It just seems like a different world from when I was in my 20's. And of course, it is! Imma gettin old!