To my knowledge, I have never had chickenpox and I am 66. My brother had it bad and we shared a room, I didn't get it. My daughter had it bad and I didn't get it. I have been waiting to get shingles which would prove that I had a very light case but so far nothing, now I read that people are getting it multiple times. Strange.
Oh man, it's coming tick tick tick.
Just kidding.
I had it twice and once as an adult. It was not pleasant.
I was exposed to siblings and friends as a kid and never got it. Then I got it from youngest son when I was in my mid-30s. Wouldn't wish that on anyone.
For people over 60, a shingles vaccine is available. You might want to look into it.