And usually, the alternative is a text message to a phone, with most temporary number providers blocked.
Nobody really designed it, and there are ways around it, with some tradeoffs, but specific account -> email -> phone -> bank -> legal identity is the typical authentication chain that’s evolved. It’s because any way of signing up that’s too repeatable gets saturated with bots and spammers.
And usually, the alternative is a text message to a phone, with most temporary number providers blocked.
Nobody really designed it, and there are ways around it, with some tradeoffs, but specific account -> email -> phone -> bank -> legal identity is the typical authentication chain that’s evolved. It’s because any way of signing up that’s too repeatable gets saturated with bots and spammers.