No. Always remember that just by being on this website you are likely to be in the top 5% for computer literacy and ability. 2FA is non existant to the general population barring systems that enforce it.
Passwords feel more like extra usernames these days with 2FA.
Why bother changing them when hashes will be leaked immediately by the incompetent idiots at <insert this week's big company that had data stolen yet again>.
I don't think those work with today's code generators, since nothing is ever sent to the user. SMS and other types of 2FA should hopefully be obsolete soon.
Ha, not if they won't let you make an account without one in the first place. Looking at you, OpenAI asshats.
The only ones I've seen still use SMS confirmation are banks, not so much because of advertising because they already have just about every shred of info that's possible to get about you without sequencing your DNA, but because they're too cheap to overhaul their systems.
No. You have clearly an infinite battery on your phone, money on your account, guaranteed world-wide service, absence of thieves, monkeys and gravity. And travels. And trains, toilets, ... hammers? Nothing can go wrong with your phone, right?