Wow. I guess I'm too old to think this level of chaos.

No internet? Hmm.

Money? Bank tellers / cash machines - a bother but still available.

Consumer life? Guess I have to go to the store. Is that store's supply-chain 100% internet based? As long as they can call whoever it is they need to call - then - while their shelves might be thin or bare from time to time - grocers would do what they need to do to stock shelves.

Mass deaths? Sure - anything major disruption may inspire unbridled spikes in mortality. I watch teenagers go into panic when social media burbs. Low threshold for chaos management . .

Ruin modern society - no. Inconvenience modern society - yes.

Now- deep breath. Perspective please. The world will continue without internet if said catastrophe happened.