What prevents someone else from doing that at any point, taking over my number? Is the only authentication a simple login to the mobile provider's website?
If SIM swapping is your concern, know that it is just as simple to do with physical SIMs. It's not like your phone number is hardcoded to that one card alone. The phone company can easily move your number around. Literally anything you'd want to do with a physical SIM you can do with an eSIM. Some very niche situations may be easier with a physical one but over all it's a much nicer experience with eSims
Literally anything you’d want to do with a physical SIM you can do with an eSIM.
No. There is no reason for you to blatantly LIE. It is NOT possible for the consumer to switch to using a borrowed or backup handset, when there is no physical token. How on earth do you think that contradicting actual reality is an argument?