Keep them around. Nice thing about Public Mobile is that their SIM card will work in any unlocked phone. So so if your main phone goes down, just swap your SIM into your old one, assuming your old one still works, and you’re good to go!
I just recently upgraded to the iPhone 11, and it works just fine. Popped the SIM card out of my old phone, into the new one, everything works as it should.
Being able to go home and spend time with my family. I don’t spend much time with them, as I live away from home to attend post secondary education. The holidays brings everyone together, something that can’t be beat!