A few months ago, I saw one of my dads friends (my dad is 59) share a product that you plug in via the USB port on an "old laptop" and it brings life to it. It was no doubt a Linux distort on a USB stick. The product claims to bring life back to old slow laptops. If he can get excited about it without understanding what it does, and we know once you have a USB stick running Linux you're pretty much golden depending on how much you want to do, well he would probably enjoy running Linux off that USB stick and not know the difference. Just tell him where the "Internet" icon is. Also many older people adopted iOS and Android and I never had to stand by and explain it all to neither of my parents despite them not being Windows based devices. People adapt. Just hard to say what caused this Linux spike.