So no, I'm not going to applaud giving the networks even more power over my ability to switch phones and SIMs. Physical SIMs are nice because I can 99% cut the network out of my decision to switch phones -- all I have to do is pop the SIM into my new phone. I do not want to go through Verizon's, AT&T's, or any other archaic provider's process when dealing with my (or a family member's) phone upgrade.
It's a lot like the headphone jack removal: replace something that works great with a solution that works OK 90% of the time. But 10% of the time you're stuck in an edge case that isn't covered at all by the new, shinier solution.
I wasn't trying to buy a new number, I was trying to transfer an existing one. It doesn't surprise me that they make it as easy as possible to get a new one.
Not that that's unusual, most of the networks are crappy - vodafone was the only UK network I could find that didn't require you to go to one of their stores to get the QR code. Artificial barriers are erected at every turn.
Your problem isn’t the e-sim, it’s a shitty network.