I 'downsized' over 14 years back, from my Edwardian family 5-bedroom house. I live by myself and lots of people suggested going into a flat. However, so pleased I ignored them. Purchased a terraced 1930's 3-bed house. With small bedroom being my home office, meant just a nice-sized double spare room - so one of the first things I had to do there was to have a loft extension, so any of my children living a good way away could come to stay with their children!! Whilst I was working I made this house ready for retirement, getting any major building/alteration work out of the way, and adding a en-suite and a utility room.
The loft room is not used much now, but as access to that is via a staircase built behind what was the old airing cupboard door, I can keep that door closed and virtually pretend it is not there. With the ground floor, being nearly open-plan, I do live in all the rest every day and have a small garden for me, the cat and the to feed the birds. My car lives on the forecourt directly outside my front door, making it easy to use and unload things from. So much better than living in a flat, and plenty of space when people do come to stay for a day or two.