It's just been my experience. I'm probably wrong. 9 of 10 people my age have it [1]. Facebook provides a public log of years of your posts. A quick way to get

It's just been my experience. I'm probably wrong. 9 of 10 people my age have it [1]. Facebook provides a public log of years of your posts. A quick way to get to know someone. To figure out if you should trust them. It's far from perfect but neither are social security numbers. Services like Airbnb's use your account to verify you aren't a spammer. I have heard of landlords and employers asking for it as well. If you don't have it you are undefined. [1] - http://www.pewinternet.org/2016/11/11/social-media-update-2016/ http://www.pewinternet.org/2016/11/11/social-media-update-20...