A birth date is just one fact of many that a person could find out from viewing your
profile and the personal information and photos you share online with social
media.
Now, it’s often not a problem to share personal information with close friends and
family, however you would not want a stranger to find out your date of birth, address
and phone number.
Fortunately in social networks you can control the privacy settings and only allow
friends, or friends and friends of friends, in your social network to see your full
profile and everything associated with it.
Ultimately it is up to you how much or how little you put online and who you do or do
not wish to view it.
If you have children or grandchildren you should be extra careful in checking what
they are putting online and who can see it.