I come from a (board) game family, and competitive family. I loved games as kid, computer games and board games and physical sports (even though I was bad at most sports, with the exception of running and stealth which is useful for 'levend stratego' [1]). But with my kids I don't enjoy board gaming much yet, as they get angry quickly. I like playing with them, but when it has to go their way solely I feel like 'OK, go solo, you can have control.'
I play Wordfeud (a Scrabble clone) with my wife and mother. The three of us are quite competitive with each other. My mother-in-law played a few games, lost each of them, and then called it. Because her idea of having fun is, well, not doing your best. My mother had colleagues whom she played games with (quizzes I think?), and they were terrible simply because she doesn't care. An old book on this is 'Play To Win' by Dave Sirlin.
Anyway, legend has it the people who are best at Scrabble are from an SE Asian country (not sure which one it was), often barely speak English, but know all the 2 and 3 letter combinations and are able to lay those down well.
[1] https://nl.wikipedia.org/wiki/Levend_stratego