https://www.cnet.com/news/twitter-vows-to-reinstate-some-accounts-suspended-by-age-restrictions/

Twitter's rules prohibit anyone under the age of 13 to create accounts. The changes, which the social media platform made in response to a recently enacted EU privacy protection law, automatically began locking down accounts of users who identified themselves as being under the age of 13 at the time their account was created. Problem is, some of them are now old enough to use the platform.

Twitter said in a series of tweets Tuesday that it was caught off-guard by the lockouts.