TechTakes

Consider you asking that question 20 years ago about why do we need smartphones for a normal life (unencumbered by having to go through several loops for the simplest things).

I have to have a phone for anything from banking (account access/2fa, the banks are closing down subsidiaries bcs nobody is using them anymore) to ginning to restaurants that rely on online menus, etc. Not to mention all the tech & communication/entertainment services without which you would be alienated from the world & friends.
(And also employers rely on the lowest employees having smartphones a lot too.)

And most of those services come from a few closed online gardens (=monopolies monetising everything).

Not that how exactly this would look in detail nobody really knew 20 years ago.

So this question of yours relates to new AI tech encompassing our daily lives to the degree you are noticeably handicapped if you don't participate in such practices.

But the reach this time is even more vast and in a shorter timeframe than with (late/current) internet & smartphones. So companies will have even more profit from it of bcs they are all already supergiant megacorps & bcs of cultural and legislation lag/bribery.