I think typing biometrics made a lot of significant advancements in the last year. I know that it is something that was in the making for a while but there are some companies out there that are offering some very interesting solutions such as continuous authentication.
The problem is convenience. I have to press the elevator button every day. After I disinfect my hand for the 5th time that day I use the stairs. Same with the fingerprint scanner.
That is not the case. I played around with this technology for a bit and it stores more than just one pattern in order to better understand how you type.