My grandfather was happily playing card games (as well as using productivity software) on a DOS machine up until he passed in 2011. For the most part, I don't understand modern software (despite working in it). That said, I personally eliminated all Microsoft products from my life a few years back and I wish more people could do the same.
Yeah, my grandpa was still using it with a dot matrix printer and some crazy old database program in order to send out mailers for some local community/political organization stuff.
But I get it - I’d still be running Windows 7 if they’d have just let it be.