Yeah I am right there with you.

I used to Juggle a lot when I was younger. I was fairly good, being able to manage 5 balls well.
Now I can barely start the 5 ball cascade let alone keep it going for long.

I have never really been a bid twitch gamer, so can't really say if that dexterity ability has diminished much.

I wont even get started on all the body aches I have now compared to 25 years ago.