If you only ever use your phone then there's no point in paying for broadband. I think a lot of people have been taking a look at their subscriptions and cancelling things which they seldom use. Do you really need a sub for a 500mbit connection when you use you phone? You can always cancel it and switch to a much cheaper slower connection or just use you allowance. I had a Disney+ sub which I hardly used so I cancell…
This assumes that people don't live outside of areas of major population density where cellular coverage is spotty and where there's not much work. This also assumes that people don't need to transfer significant quantities of data on a regular basis for whatever reason.
This article is about people living UK, which a much smaller country that has much better mobile coverage.