There are Some Use Cases
There would seem to be some valid use cases for many IOT type devices. Remote viewing of security cameras, adjusting thermostats in areas that are intermittently occupied, limiting access to people who have legitimate current access needs etc, etc, etc. But in many situations, it is unlikely that there will be enough users to justify mass production. So it's likely that much of this connected trash will be designed in ways that maximize profits rather than actual user needs like security, reliabilty and such. Cheap, but annoying and maybe even dangerous. In a lot of cases, I suspect users will be better off sticking to old fashioned manual devices.