My parents just bought a new home and want keyless entry/locking for the front door. I say "less-technologically inclined" not in a way that they cannot use a computer but rather in a sense they would just prefer something relatively simple in terms of ease of use.
They are in the Google ecosystem if that helps.
Edit: I was just told that they bought the Google Nest Doorbell.
Assuming they don't need to open their door with a mobile phone, they likely need only a keyless lock which requires a passcode or fingerprint to enter. Choose one that's compatible with their existing door hardware for a low-cost DIY installation. If they have a keyed deadbolt, I recommend this one US$80 from Wyze which you'll have to source directly from the US when it comes back into stock.