We've downsized from a large three-bed semi into a one-bed bungalow just this week and so far loving having everything on one level as the stairs were becoming an issue for us now we are both in our mid sixties. Its in an area we both like with shops, doctors, chemist and on a good bus route all withing easy walking distance and has a large garden to enjoy in the summer months, and it was for this reason that we decided to not consider moving into a flat, also I do like to peg out washing in my own garden and not share recycled bins. etc. Another thing, is that it's just so much warmer than our large house and hopefully cheaper to heat.
I know it's early days yet, and we've still got a lot of sorting out to do, but we just knew it was the best thing for us in the long run.