I remember being young and thinking middle-aged people are staring at me because they want me /they disapprove/whatever.
Now I'm middle aged myself, I know the staring is way more likely to either be something along the lines of "ah that kid is so 90s, I never had that green colour but blue Fudge used to wash out to green like that..."
Or "have we run out of natural yoghurt, we bought that 500ml pottle last week but we had curry twice, maybe I should get some more..."