The anecdotal evidence is that people with landlines tend to skew older, whiter, more conservative, and more rural. That’s what I have heard. Disproportionate numbers of millenial “yuppies” only have a cellular phone.
Land lines are better under times of stress.
Well, I don’t have a landline. Got rid of it as I got sick of the incessant robocalls and pollsters.
Bigger issue than cell phones per se is the caller ID. If I don’t recognize the number or if its out of state, it gets declined. They can leave a message and I’ll never call them back.