Really? I live in Japan, eSIMs made it very easy for me to switch carriers 3 times when I was shopping. Just had to click the “agree” checkbox in the ts and cs for each carrier when I switched, provide the transfer code (which is always in an easy to find place in their management dashboards), and then plug that into the form when signing up for the new carrier. Then my butt did not have to budge from my couch as the eSIM was provisioned and my old service was cancelled automatically. Definitely beat schlepping it to the physical stores of each carrier in ye olde times.