[bloak]

Yes, and I've left my keys in the outside of the front door all night, with the keys for both cars attached, probably. Fortunately it's a good neighbourhood...

I'd like houses to have something like central locking, like cars have had for ages. I just don't want it to depend on the Internet, except if I deliberately choose to connect it somehow.

I'd also like to be able to read my gas meter without having to change my clothes afterwards having fought my way through dense vegetation and spiders' webs and knelt down in the mud. But I don't want a "smart" meter connected to the Internet. I just want a local radio link to my own hardware.

Any chance I could have these things without having to build them myself?

[deadbunny]

Yes, this has been around for years. It's just basic "smart home" stuff. Zwave/Zigbee devices are plentiful. If you don't want to do it yourself then you pay a company to come in and make your home "smart", they'll sell you everything from the controller to the remote to control everything.

80% of the comments in this entire thread are about the woes of connecting everything to the internet which is a fair concern but it's not like non internet connected equivalents haven't been available for decades.