I had a single Sonos speaker with Alexa (deactivated) and a Nest carbon monoxide detector. They have both been replaced with non-smart alternatives. The tipping point was seeing friends install smart heating systems and smart locks. I can't imagine any level of convenience that would make me literally put the keys to my house and ability to be warm in the hands of a 3rd party IoT company.

I find the idea that you'd connect things like these to the Internet absolutely insane. I do think we're past the point where being able to ensure you don't leak data isn't compatible with functioning in the modern world, but trying to limit the things that have Internet access to systems where you have control just seems sensible.