Yes; and yes. Some people who don't sell/trade-in their older phones keep the older phones around for use as a primary phone abroad or for use as a secondary/back-up phone use in case there is a problem with the other one. As long as the older phone has the right bands for the destination and there are available SIMs/eSIMS for use that can be procured locally (or remotely in the case of eSIMs) for local destination use, it can work out ok when hit with such unfortunate circumstances.

Even if having to pick up a used that is a couple of years old, they can work just fine as a back-up phone without any substantial additional cost if willing to also carry around a portable charger to factor in for the worse battery life.