I have found that having a local number when I go to a new place is a big convenience. Doing things like ordering takeaway food online or trying to contact a hotel or some other service is a lot easier when not having to deal with an international call.

Most of the travel eSIMs don't provide a local number (esim.net is the only one I can think of off the top of my head) but getting a SIM at a corner store after getting out of the airport always does.