I sympathize. Circumstances mean that we actually do still need, not just a phone number, but a landline. We just hang up on those rare occasions when our call screening fails.
The trouble is that means policy is being set or supported based on the people who don't know enough about anything to even figure out how to manage their phones.
We're all doomed.
How about maybe seeking input from people with actual, concrete expertise in the relevant fields on what can be done today, tomorrow, etc to, you know, actually meet the damned goals!