Earlier quoted context omitted.
In Europe there is a mindset that companies can become so big that you can not avoid them anymore. Nobody forces you to use Google or Facebook, but you are put at a disadvantage if you do not use them. Facebook is not free. You trade your data for usage.
Google? Maybe. Facebook? I would argue that using Facebook is a net negative and you're at an advantage if you ditch it.
The few people I knew who didn't use Facebook at uni ended up using it through others whether they are were willing to admit it or not.