It's because ultimately nothing can be done to stop it spreading so spread is what it does.
Ok maybe we can put measures in place that might slow it down. Masks for instance, might not be a real hardship for some to wear in all inside places but it's hardly normal. It may well prevent people from doing "fun stuff" inside, like going to the pub/a cafe. Fair enough, we don't *need" to go to out, we can all stay at home with our wine and coffee and have friends over. Slowly but surely the businesses start to lose profit and have to let some staff go at best to stay afloat. Those staff are then left jobless.
Maybe we can go back to spreading out the tables or only allowing households to sit together so that's reducing the amount of people that can physically be in there and spending money. People will just decide it's not worth the hassle, especially alongside masks and once again stay at home with their friends.
Maybe we can ban large gatherings again but that doesn't really work either because people still find a way to gather in large numbers and instead of doing it legally and properly it just ends up in anarchy because people are fed up and will just do what they want regardless.
So it's still spreading because people are still socialising, inside, outside, in small groups and large groups but ok maybe it's spreading a bit less.
Then there comes a point where you have to think is it worth it. If we keep these measures in place then maybe COVID won't be as rampant but unless it goes away these measures will have to stay in place because as soon as you lift them the cases will increase logically because more people are in contact with one another.
How many people really want to live a life where we have to go around wearing masks inside everywhere and being told who we can and can't socialise with for something that for the most part isn't going to kill them or perhaps even make them even a bit ill.
I had it back in April and I didn't even need to go to a festival to catch it. It came from somewhere, maybe the supermarket, the gym, work, the kids, a friend, I don't know and don't care. I only did a test because I had one and was curious and as a result I was left with a dilemma about going to work. I was a month into my new job, didn't really want to call in sick especially because I didn't get paid but I didn't feel amazing and I didn't want to give it to people. I ended up staying off the whole week and losing my whole week's pay.
2 weeks ago I came down with similar symptoms only this time I didn't have any tests and there was no point in taking one because I wasn't about to change my behaviour. I went to work for the day even though I wanted to stay at home because I couldn't risk being off again after such a short time and I definitely couldn't afford even the days loss let alone a whole 5 days again. So had it been covid then I've spread it around my workplace and amongst all the customers but I had to put myself first. Nobody else is going to pay my bills or get another job for me. As far as I'm aware no other staff member went off sick and I was still seeing the same customer's faces so they weren't dropping like flies either.
Every virus that is circulating among us was new at some point and they will have killed lots of people but the rest of us are still here because of immunity. Nobody wants anybody to die from a virus but the reality is somebody will at some point and you will have given somebody a virus that has killed someone. Maybe not directly but you get it from a, pass it to b who passes it to c who passes it to d and then they die or maybe suffer long term issues. You have no clue who this d person even is but you have contributed to them getting a virus.
One day this virus will be as old as time (unless it's eradicated) and another will be there to take its place, and another and another until something comes along that wipes us all out for good.