Agreed. There's very little litter in the UK countryside because (generalising) the people who litter don't go there and the people who do are included to pick it up.

British towns and cities aren't great, embarrassingly bad compared to the Japanese cities I've been to.

I spent a weekend in Lisbon recently and was fairly shocked at how bad the litter / rubbish was. The worst I've seen in Europe. Warm climate made it smelly too.