One of the things that good surveys do is explain their methodology for factoring out bullshitters, because some relatively noticeable percentage of people who will respond to a survey do it maliciously/humorously.
Don't forget "accidentally" particularly with the "push 1 for X" "push 2 for Y" polls. Good pollsters have ways of polling for things that are well under 10%, but it's a non-trivial problem to solve.
I have not answered unknown call numbers by using my voice for about ten years now. I start muted or I whistle to see if a spammer is on the other end, but mostly I simply let them go to voicemail, then block and report the caller. It was clear for many years now that voice prints would be a useful thing to spammers or other adversaries and I certainly don’t want to pair my phone number with a voice print on a random machine. I have probably lost a couple reminders from dr offices, especially in recent years when people started using automated call systems, but things feel simpler than a decade ago when the spam load was unbearable.
I don't wanna make assumptions, but this sounds like you're probably not American. Americans are completely inundated with spam calls every day. It is hard for me as a European to imagine this kind of life, but that's what it is like for them.
As a result, I as a European cannot fathom how one can even live a life with a phone in America, while for Americans it's unfathomable that we would actually use our phones as phones by answering calls.
I only answer an unknown number if very particular circumstances (from the area code I live in which is far from the area code of my phone) - otherwise, it goes to voicemail and if important I will call back.
Otherwise it’s all about my extended warranties and other scams.