Too much of the wrong sort of technology
IoT seems like it should be a major growth area but the technology is focused entirely on turning 'things' into peripherals of some proprietary cloud based ecosystem. This may seem to make sense as a business plan but its not that welcome to customers because it takes everyday household objects and subjects them to the security and reliability (and latency) issues of the public Internet and the ebb and flow of corporate business decisions. ("...and all I wanted to do was make a cup of coffee")
To illustrate how absurd this is take the example of the thermostats in my house. These are "WiFi" enabled and with appropriate configuration I can control their setting from a voice assistant like an Echo. When I ask the Echo to change the thermostat setting the echo parses my speech in the cloud -- fair enough since we're not quite at the state where we can do this locally -- but then Amazon's cloud has to open a conversation with Honeywell's cloud. Once they've exchanged credentials and mentioned the thermostat is to be changed the Honeywell cloud waits for an opportunity to push the request t the thermostat. This takes about a second and relies on all the relevant Internet and cloud components being functional. I could, of course, just step over and press the button on the thermostat but it would mean cutting out corporate players -- I'm pretty sure Amazon has no interest in my thermostats but judging from feedback through my email (mandatory) Honeywell is very interested in my domestic arrangements.
I tolerate the thermostats because I can just get up and "give them a re-programming they'll never forget" if they don't behave themselves but the prospect of mission critical devices being beholden to corporate whims -- that's just a bit too much. We should have learned our lesson from ink-jet printers.