People CANT survive without internet.
I'm wondering how did my ancestors survived in the past without internet?

The economy was much less efficient and people had a much lower standard of living.
Bullshit.
For a lot of essential functions the internet only saves a meager amount.
I have already dealt with institutions that that calculate with "ok, and what happens when a tank blows up an office?" type of events. Internet is a "nice to have" to save a couple of expenses, but its very far from being essential.
The internet does a lot for the economy and for the average consumer then most people realize. Even if someone never uses a computer or a smart phone to access the internet they still benefit greatly from it. For example the internet (and corporate networks) allow for companies to manage their resources to get their goods to their various points of sale, it allows merchants to check instantly if a credit card transaction will be approved, it allows banks to check instantly if a customer has sufficient balance available to cash a check, it allows merchants to manage their prices based on demand.....the list continues.