We started married life in a modern terrace house, moved to a similar sized 19th century detached house, then a modern detached house.
- and then back into a semi-detached house. Much bigger than our detached house, 19th century with 13 inch thick walls. When we asked our neighbours to complain about our children's music which was deafening us. They said, they couldn't, they hadn't heard any of it.
25 years ago we moved again, 15th century house, a much bigger house divided in two, so we are still semi-detached. But again very little noise transfer. The bedroom DGC use sharea a wall with next doors mnin bedroom. I told them to let me know if the children were too noisy. They said they couldn't hear a thing.
I have certainly not met any snobbery over semi-detaced/detached and we have happily movd from one to the other - and back again.
I have also spent my whole house owning life in the South East. The south east, and London in particular is predominantly flats, terraced housing and semis, You really have to get to outside edges, beyond Reading to the west, and i am sure similar towns as far out as Reading in other SE counties, before a detached house is within the means of other than the very affluent..