All of this is done so that you can be targeted with relevant ads.
Here’s how to opt out of targeted ads on Facebook.
How to find out who has your info
Before you go opting out, you may be curious about who is using your information and how Facebook has collected your data.
In your account there is an Advertisers and Business page where you can see what businesses have your user data, who uploaded your data, pages you’ve clicked on that collected your data and more.
To find this page on the website, go to Settings > Ads > Advertisers and Businesses.