That was a big talking point a few years ago. Polling companies stubbornly held on to calling landlines for too long, but the only people who had landlines were not representative of the voting population.
They try to correct for things like age, income, race, etc, by weighting the answers to match the wider population, but it’s hard to correct for things like “stubbornly old-fashioned regardless of physical age.”
That was a big talking point a few years ago. Polling companies stubbornly held on to calling landlines for too long, but the only people who had landlines were not representative of the voting population.
They try to correct for things like age, income, race, etc, by weighting the answers to match the wider population, but it’s hard to correct for things like “stubbornly old-fashioned regardless of physical age.”
Which explains a lot, because the only person I know who still has a landline is my 80 year old grandmother