I get all the objections, but — eSIM is extremely convenient for traveling, when you just want data in another country. You can have many of them stored in your phone and activate them as needed if you travel a lot. You also get dual-SIM on most devices so you don't have to carry a second phone for your domestic number.
I'd never replace my actual SIM with one though. I can't bring myself to trust software this much.
I do the opposite. eSim for my primary sim. And then the sim for travelling sims, as not all countries or not all providers in those countries have esims. And if they do then esim it is. Otherwise the free sim slot is available for a physical sim.
All these software-that's-easier-in-hardware things Just Work™ until they don't. Bluetooth also works 99% of the time, the remaining 1% makes you want to yeet the damn thing at a wall in frustration. That's why I have trust issues with this stuff.
I'd never replace my actual SIM with one though. I can't bring myself to trust software this much.