IoT devices are getting more and more intelligent and can now create meshed networks by itself, switching from a sensor into an actor and transferring information only for the neighbors. For example to tell the doorknob that the Homeowner will be at home in 5 minutes with his EV, and the Wall box and the door needs to be unlocked. Right now that is possible by using IF TTT, as example, but it is an extra protocol and needs manual configuration. We won't talk about security, too ;)