You take the SIM card out before handing it someone else.
What eSIM does is turn the physical smart card into a QR code which can be shown on a screen in addition to being printed on a piece of physical paper.
Yeah, now I just need a printer or someone else with a phone. Oh, your camera isn't working/bad lighting/software shenanigans? Tough luck.
Two years ago I made a QR code for a local bar so a visitor could just scan it to join the news group.
One night I helped a girl to scan that QR code, because she said what scanning QR-codes never works on her phone. Turns out you need to go to the settings and check some options to allow a built-in camera to process QR codes. I think it was some premium Samsung Galaxy S20-something. *shrug_emoji*
That's the point. Now, suddenly carrier has more powers than they should. Having a standard where consumer is in charge is much more desirable than the other way around.
> This is more convenient than having to search for the SIM removal tool. Then let the manufacturer know that a SIM tray without the need of SIM removal tool is your preference.
That really depends on the carrier. In my case, setting up a new iPhone to replace an old one means saying yes in the prompt displayed by the phone. Nothing else. This is more convenient than having to search for the SIM removal tool.
> -you can't just hand over your phone to someone else, you have to unroll yourself and enroll the other person
For me this is a big feature because I would never hand my phone to somebody else, but an attacker is very likely to remove the SIM card and put it into their phone. Now suddenly many 2FA accounts are protected by a 4 digit PIN rather than my 20 digit phone passphrase.
> -you don't have anonymity and privacy since is no longer possible to use a prepaid physical SIM
It works exactly the same way as it did with physical SIM cards only the physical card is replaced by a QR code displayed on a screen or a printed paper. If the carrier sells anonymous prepaid SIM cards, nothing prevents them from selling anonymous prepaid QR codes.