People have changed habits: most people do not use a PC for their everyday computing. They use a smartphone, and at a stretch, a tablet. There are a sizable number of people, not weirdos who don’t use tech but the average person who does banking and gaming and books flights and checks instagram, who has never used a desktop or laptop outside of an office. It’s all mobile devices. It’s Apple and Android.
This is apparent if you frequent social media that isn't tech focused like HN.
Spend a bunch of time on reddit and it becomes incredibly clear: The extreme majority of people on the Internet (In the USA, at least) are doing it from a phone or tablet.