Nor do I, I have a nice pair of Samuel Windsor open toed leather sandals for summertime use.
I don't wear formal shoes if I'm 'walking about all day' - I have very comfortable Deck Shoes for that and if it is serious walking over Fells etc. I have a pair of Brasher Boots which are both comfy...
Shoes of course, wear trainers at the gym, playing badminton or cricket. What on earth are grown men doing wandering around dressed like teenagers? :nono: