Go figure, you can't get a SIM card sent to you from the US to Europe, meaning that you potentially lose:
* Access to messenger apps and chat history
* Access to your bank account (with a special nod to Citi)
* Access to your email account if it uses "2FA" with a phone (looking at you, Google)
* etc
Given that my bank cards and laptop were stolen along with the phone, I've had a Very Fun Time™ dealing with all these systems.
And something tells me short-code SMS receipt (which is what banks use for 2FA) is not going to work well anyway.
a) Porting your number takes about as much effort as moving between mobile phone providers
b) Setting up a sip app on your phone is trivial (server, username, password) - I'm generally a fan of Acrobits Softphone
c) My voip provider has an sms <> email gateway, so my bank (and other sms based) mfa lands in my gmail inbox
But the funnel is brutal. Try signing up from anything but a phone, or try not giving it full permissions, etc etc - and you'll have a miserable time. It's a vicious vicious sweet and alluring Black Mirror episode.
No, you are not the only one. I don't understand how sharing contacts with any app is legal under GDPR without getting consent from all contacts