These things are very poor candidates for access control because you need fuzzy statistical/ML/AI/CV recognition techniques (which means you have to worry about false positives and false negatives), and it's basically impossible to re-issue credentials in case of a compromise (changing someone's fingerprints or facial characteristics would require performing plastic surgery on the user!)

But because of movies and TV, everyone "knows" that in the future we're supposed to have our technology unlocked by our fingerprints, so that's what drives people to buy and vendors to implement, regardless of how absurdly impractical it is if you actually stop to think about it for five seconds.