The UK has ca. 69 million people. Cities have large populations, so where it is populated it can be quite dense. Granted there are large swathes without habitation. You have to compare like with like.
I think the density brings problems with it. Easier for crime to be carried out and harder to find perpetrators etc. In London, I saw where an old motorbike had been fly tipped in a back alley. It was still there 3 months later. You wouldn’t get that in the Netherlands! However, London has nigh on 10 million people. The size of a small country. I don’t know how resources correspond e.g. police and healthcare.
The museums and art galleries are free. Also there are usually places where families can have a picnic, even if it entails outside tables and seats. You don’t have to have money to bring your children to enjoy culture. I was quite surprised in Washington DC (Smithsonian) when I couldn’t find similar. Granted the Smithsonian itself is free, but we had to eat at the very expensive cafe. The chap in front of me asked the person at the till to check the amount again as the modest contents on his lunch tray amounted to around $30. In London, we used to bring our own picnics for lunch.
Some places are very memorable. The west of Scotland is breathtaking. People and location. Cairngorm national park (although we didn’t see the Scottish Wild Cat). Wiltshire and Somerset too. I had the best freshly baked Chelsea bun of my life in Frome. Granted French food can be a religious experience. Class 1 means just that in France, and the ham in Champagne was divine. They have the climate to grow their own fruit though.
The idea of the NHS is amazing. Coming from the Irish healthcare system, I never got used to not having to pay for the GP each visit. Adults and children. Also, the subsidised prescriptions. We used to laugh with a friend (pharmacist) complaining about an increase of 50p or so on NHS prescriptions. We used to tell him he didn’t know he was born. He’d have experienced a very sharp shock to his system in Ireland at that time as an ordinary P.A.Y.E worker. Most would have had to take out private health insurance, and receive very little for it. All the while also paying tax into the public healthcare system. I know it is somewhat improved now. To get a Medical Card in Ireland (which would give some free and otherwise greatly subsidised healthcare) your income has to be very low indeed. But I won’t meander.