Sometimes when I reminisce about what the game was like when I was last active and compare that to what it is like today, I feel like Al Bundy of "Married...With Children" reminiscing fondly about his days as a star football player at Polk High School (that's a US comedy TV series reference, for those of you who do not live in the US).
It's not fun to realize that your glory days were more than half a century ago... 
The description of this club says it is for "men and women 55+ who took up chess as a retirement activity." That means that at least some of us are returning to chess after being away for years.
For those of us who are returning players, how was your journey back into the game?
For me, the road has been bumpy. The last time I played regularly was the late 1970s. For many years after that I was focused on career, married life, etc. When I began to read about the game again I was really surprised to see that the descriptive notation I learned was not used any more. I did not like algebraic notation. Now I'm used to it, but I need to have the letters and numbers printed on my chess board.
Also, when I learned how to play we did not focus on openings. In my high school chess team we just set up and played. We didn't even use clocks. Because of the way I learned I can't really say that I know any openings by name, or any "opening theory." I just know basic chess principles. I have started to study openings, but can't yet identify by name the ones I prefer. There are so many, and you can really get lost in all the variations. Someone on the forum mentioned the London system as being very simplistic and boring, so maybe I will choose it as my main opening!
And I hate endgames! Few of my games when I was a teenager lasted to any kind of endgame, so I never got comfortable with that part of chess. I spend most of my chess time these days replaying the games of great players from the past, but I never play out long games where there are long endgames. So if I ever play against you, if you can get me to the endgame you will probably win, haha!
While I love chess for its artistic beauty, my knowledge is probably very basic compared to most of you.