Examples: I'm entirely dependent on online banking, as the nearest bank office is 30 minutes way (and it will be closed by end of 2021).
The shops around here are mostly just food shops and a few ones that are more specific to the rural life, but for any modern creature comforts I quickly have to resort to online shopping.
Want to take the bus, only mobile tickets are accepted these days.
etc etc.
Still, it's a convenience and a habit, not a neccessity. Before the Internet, people were simply taking that 30 minute trip to the bank. Hell, I have a friend who, in 2021, does not even have a bank account.
It would be just about possible to live without the internet but getting to the shops would be dangerous without a car. There's little public transport with the nearest once a day bus accessible via a bus stop 1.5 miles along a dangerous to walk road.
17% of the UK (just under 10 million) live rurally in the UK.
Living in a modern day City, it would be difficult I guess, because so many daily life services/chores are now partially or wholly dependent on Internet. And if most of your family and close friends are also living in a city, then it becomes more difficult.
But let's say that you move to a rural area, then it should become achievable. Parts of world, still untouched by hyper advanced internet dependent technology, will still retain the old ways of doing most things.
You may have to convince your close ones to move with you and it becomes more difficult if you are married and have children.
Starting on this path, early in life should help.