Shoes MOST of the time... trainers only when playing sport...as the respective footwear were originally intended... I'm not judging you scruffy, trainer wearers in any way but I just feel much SMARTER in shoes.
Never in DINNING areas of course.......
For work it's boots or trainers depends on what I'm doing.
I wear trainers when I'm not working, but wear boots when the weather is bad or if I go walking.
Very rarely wear shoes.