I wouldn’t say that there are Go related things that make me feel very old, because Go is something I seriously picked up fairly recently when I was already in my 30ies. Though come to think of it, that “fairly recently” has already been three and a half years that “seem like yesterday”, so there is that I guess
I still retain some of my youthful hobbies (e.g. basketball, reading and music) and my love for board games (obviously) and video games, so since those are “things that I always liked/did” I do not usually realise how much time passes. Looking every morning at 1/3 of my hair that have gone white in the mirror does the trick hahaha
On a more serious note, noone wants to grow old, see his mental faculties diminish and his physical abilities be curtailed, but it is inevitable. For me there is something that makes all this quite acceptable and tolerable: The fact that I am not really that good at anything I do, so when my time of decline comes, the world will keep on spining, noone will really notice and noone will really be harmed or hindered by my inabilities (apart for me, but that is beside the point). I find that oddly liberating. Turns out that mediocricy has a lot of merits.
Ok, I should lighten things up a little, eh ?