Aren't people just describing ageing rather than changing tastes?
I walk less than I did in my 20s, I don't stay up so late and don't drink so much and definitely play less sport, but none of that is due to my tastes changing; it's just my body is not up to it. I'd certainly do a lot of these...
Funnily enough, I was having the same thoughts last week but mine were about how little mine have changed since my early 20s.
My favourite drink was Harvey's (it still is), if I drank spirits it was whisky, normally Laphroig (I still do). My favourite meal is curry, my favourite snack is bread...