Nowadays, if a single guy doesn't use Tinder and other apps, it's missing a huge pool of single girls available to meet for a drink (or other things).
It's never been so easy to meet new people, so guys don't value so much the girls they met like before, but it's the same for girls. If the pool of single girls it's huge, imagine the pool of single guys on this apps.
I know a lot of girls who uses Tinder only to inflate their ego and play with guys. They have never met one guy through Tinder. Sometimes they even mark a date with a guy and "disappear" before that just for fun.