There is a riddle: A child is half as old as his parent. The next year the digits of the child's age will be the reverse of his parents age. How old is the child and the parent?
That fits my dad and I. I was 36 when he died at 72. Had he lived another year, he would have been 73 when I was 37. More on that at the end...
My dad was definitely the quiet but strong type. He and my mom had 7 kids, and he focused on providing for us. But he made sure we understood that we needed to be independent. His mantra was "when you graduate from high school, you are going to college, getting a full time job in a trade, or going into the military. No ifs, ands. or buts". He discipline was more than balanced out by his words, acts of caring, and delights in our achievements. In addition, the neighborhoods we grew up in... it was necessary. In truth I probably resented him more until I went away to college - and then started to understand more of what he (and my mom) were trying to teach me.
One lasting image of him is, when in high school I had to leave in the morning before he went to work, of catching a glimpse of him and mom kneeling at their bed and praying. Later in life, I would ask him about that, he said their biggest prayers were that the 7 of us kids would always stay close and that whomever we met and married would also want to be close to all of us. It pretty much worked

. Another impression - he was never big into receiving gifts, and would say to us "anything with the name or emblem of you college is fine". A few years before I retired, a work meeting brought me close to where he worked, and I stopped him to see him... and his work area was full of these items, representing the colleges his kids and grandkids attended. Education to him was the great equalizer in life, and as an immigrant from a non-English speaking country who got as far as an associate degree, he was proud of our education attainments (even if it did get him removed from a jury pool once

).
When he retired at 70 (after years of all us telling him to retire, but he had his good and valid reasons), I assumed many years of both him and mom (who was 6 years younger) in our lives. He delighted in being a grandfather, as he grew up in a foster home without parents, let alone grandparents.
He never spent a day in the hospital, was not overweight, and had no mobility issues. So his cancer diagnosis at 72 and death six months later was a shock to me. He died on Christmas Eve, and even though one of his last wishes was for us celebrate Christmas as normal that year, especially for our kids, I have felt a little different about that time since then. Not "bah humbug", but much less focused on the commercial aspects of it.
Now an interesting footnote, relating back to the riddle at the beginning: He died six days after our youngest son was born. That means that should I reach 72, that son will be 36. Sometimes I wonder if history will repeat itself

.