I'm glad wifi exists. It's very useful. It isn't always 100% reliable, but I don't really expect it to be. I have 7 wifi routers around my property for different uses. 5 of them are for IoT devices so they can live on their own network. 2 of the wifi routers are for my family's personal devices.

But every computer I use other than my laptops are wired with cat6 or better. I even run an ethernet line all the way out to the separated garage because I have a backup computer out there.

Ethernet is great, but wifi is also pretty great, they each have their use cases.