Everyone that used to use computers mostly still use desktops in addition to smart phones. But the vast influx of people that use smart phones as their main sy

Everyone that used to use computers mostly still use desktops in addition to smart phones. But the vast influx of people that use smart phones as their main system means most don't have full ISP and real connection to the internet. At best they might have an ipv6 address. But an ipv6 and CNAT ipv4 still doesn't allow you to communicate with most peers on the internet even if it does work for most corporate websites. If ipv6 ever arives then p2p can work. But until that time most mobile devices cannot participate in most of the internet, p2p included. And mobile is where the money is spent.