In 2018 Americans got 26.3 billion robocalls, up 46% from 2017.
With an estimated population of 328,863,150 in 2018, that's 79 per person, so more than once a week on average, and of course a whole bunch of that population doesn't have a phone (e.g. most kids)
I get far fewer scam calls on the cell phone than I do on my ex-landline (now VoIP), at least. For the VoIP, I had to set up a CAPTCHA on Asterisk.
You should double check with customer care (611). As I mention in a sibling comment, I'm on a very old plan (20+ years). It's SimpleChoice, 10GB per line unlimited calling and texting (4 lines + 2 free as part of a one time promo).
One piece of anecdata I'd note is that I'm around people all the time, and their phones are seldom ringing. When they do ring, they at least look at it.
I only get about one a week because I don't engage with the robocalls or give my number out freely.
Other people don't protect their privacy as well, or they do engage with the robocalls (answer, or say "hello" when they answer which triggers the bot to continue, etc).
Can you cite some support for this belief?
My SO never answers any calls with unrecognized numbers, screening all of them via voicemail.
I eagerly respond to every call in an effort to waste the scammer's time.
We get the same number of junk calls.
Or maybe the robocallers could be calling you two equally because whatever information they have, indicates the owners of those two numbers are married and either person could answer the phone. All they know is that they spend a lot of time on the phone with you, and you haven't bought anything yet.
I'm not sure why the facts that different people have different views on privacy or that robocallers wait for victims to say something, need to be cited.
If you meant to quote this: "I only get about one a week because I don't engage with the robocalls or give my number out freely." I should have written "... in part because ..."
There are probably other factors that robocallers use to profile their victims such as income, debts, purchase history, family, etc which they probably use to target (call them more often) people who they think are more susceptable to their scams/products/services.