Yes, do set it aside. Memo: Prissy political correctness is out of style. "Old Man" is far more a term of endearment for parents, husbands and boyfriends and male leadership, than it has ever been as an insult to elderly males. If nothing else, "Old Man" is simply not mean enough as an ageist insult; I do way better than "Old Man" every morning in the mirror brushing my tooth. Whereupon I look back at myself and say, I can still kick your *** (I just put the asterix in here myself, to save the filters the trouble).I cringed over the phrasing in this thread. “Old man” is an offensive term to many...both seniors and their children! I knew people in college who described their fathers that way and there was typically a jarring undercurrent of being patronizing.
Setting that aside
Setting that aside... as long as his vision is good, or comfortably correctible, a 15 Air seems to fit the bill. It's powerful enough, and future-proof enough, to operate as a desktop when he's in the office, or if travel becomes less essential. There aren't any clear Wintel equivalent winners. Worst case, you can boost the RAM, and install Parallels. I get the sense that your old man is tenacious enough to learn what matters, and it's nice to hear that he's still gittin' er dun!