The biggest hindrance is showing value in upgrading to the "smart" devices. A light switch connected to wifi and a phone is just not needed in 99% of the cases. Operating it with a phone is just not incentive enough to replace it with something that is 10x more expensive than the original. Same thing with other "smart" items too, at least in my case. Something like a garage door opener is different because its relatively expensive to replace than fitting an adaptor to automate, and there could be more people needing to operate the garage door remotely. I don't see an explosive market there. The only easy market is the "scare" market which is what Ring exploited and pretty much rules the camera doorbell.