Yes, that's the beauty of the photos, you look at them and go back to the moment of shooting.. at least for those photos taken with heart and passion, I imagine that some shots on Instagram don't have these prerogatives lol!
I confess that perfumes and sometimes flavors also have the same effect on me.
It's nice to remember, also because it means that in life you have worked well to build good memories.
The human memory is triggered in many different ways and I value mine. I have a good one, but my father had dementia which means I'm likely to have the same issue which is one of my biggest fears. I will face it though, and in reality, I'll not know I have it I guess, so it'll be all good.
Well where I come from they say: don't wrap your head before you've broken it.
According to our current knowledge, dementia is not hereditary but sporadic, so it is not said that if a parent or relative has had dementia, their children will have it.
However everything I know faces and you are not a person who escapes battles, this in general, so yes, whatever the case in the future everything will be fine.
It'll all work out, and eventually I'll die and it won't matter. In the meantime I live each day as best I can and have a pretty good life. No real complaints.