My housemates, perhaps obviously, have keys to my home. Clearly I trust them not to walk off with my laptop while I’m out. So why don’t my best friends also have keys?
Even though it’s unusual, it makes a lot of sense. With a key to my place, a friend can
wait inside when they arrive before I do
leave their bike at my place when they are headed to an event nearby
stop in to use the bathroom and see if anyone’s around
use my living room as an “office” when I’m not around during the day
In the past this has been a bit of a hassle because keys need to be duplicated, and it’s very hard to revoke access. But with an internet-connected lock, this becomes far easier, not to mention trivial to log every access.