It is kind of funny that people never thought of that. For the 2020 Census there was a big push to have our interviewing app always connected. Thankfully we did a lot of pushing back, people who live in metro areas have no idea how bad cell coverage can be. And when we have to count the entire US you can’t always be connected. Just seems to me like they made that bad assumption.
and one would think even people who live in metros areas would have noticed that you have little or no cell service when you are underground (on trains or vehicles going through tunnels)-- or when you are deep inside some giant old office building or museum -- or in the middle of a nice sized park.
