You’re looking at frequent IRS Audits and verification requests from Social Security and what not, but TBH if those people keep their mouths shut and you don’t tell anybody you’ll probably never get taken away in most developed nations.

The thing about it is you’d have a difficult time convincing anybody you’re really that age, and the companies that are capable of studying you aren’t actually competent.

You’re more likely to just get deported somewhere at random.