Maybe not to you, but then are you elderly and therefore only minimally involved in society?

If you were actively part of todays modern generation you would understand that almost EVERYTHING in todays society requires a social media presence.

You would understand that most young people do not want to be excluded while all their friends and family, partners etc are all interacting on social media.

You would understand that they do not want to be left out of the loop while all their work collegues share information and discussion in their company's own social media groups.

You would understand when people meet for the first time and exchange social media links no one wants to be the loner weirdo that says they don't do that.

Therefore when the tech corporations hold their users social media accounts to ransom in demand for their phone number it is like like putting a gun to their head. It is saying you either give us your phone number or we will prevent you from participating in all of the above. You will be a pariah excluded from the rest of society. A second class citizen depersoned and deplatformed.