I don't think things will be complicated. We will go through a period of readjustment and from there life will return to a different rhythm as we lived a few years ago. In a hypothetical scenario, future generations will not face problems since they will be born in a world without the internet.

i. I believe that people whose jobs are exclusively related to the internet will simply not be able to work. ii. Soon banks will revert to bureaucracy (this will take some time) as will all sorts of services. iii. The lucky ones in such a case will be those who are not so much in touch with the internet. Those who still have cash under their pillow and those who have collectibles or items of value. iv. Influencers and social media addicts will potentially make daily suicide attempts. v. Those confined to their homes and wired internet addicts will be forced to go out for at least one walk to socialize vi. The first period of time the streets will possibly be in total chaos... From traffic on the streets to robberies and offences that will multiply due to no camera surveillance. vii. The socialization of humanity will be quite large. From there, new things or rather things that have already been forgotten will emerge...

These are my first, rough thoughts.