Second problem: hanging laundry. It takes a lot of space and you need a relatively low-humidity place to do the drying where people aren't going to steal your stuff.
1. Yes, three hours. Put laundry on, go do other things. Come back later and its done.
2. Most folk in the US have significantly more space than in the UK, yet in the UK it's still common to hang clothes to dry. Apartment blocks typically have shared space for drying clothes. A rotating clothesline takes very little space.
3. The UK frequently has inclement weather. Many folk don't even own tumble dryers and still get clothes clean.
4. That appliance has running costs. Wind is free.