X is working on new transparency features to help users identify who they’re interacting with, such as account creation date, ...
Going along with an untruth for fear of disagreeing with others is a form of self-betrayal that will make you miserable.
You can see who unfollowed you on Instagram by checking your Followers list, or looking at who someone follows.
You can find your friends' birthdays, if they're visible, on the Facebook desktop website or Facebook mobile app.