I personally have many zigbee devices that I operate happily, but most entry devices by big names (e.g. Google, Amazon, Wyze) and smart-home appliances (think garage door openers, light/fan fixtures, laundry machines, ect.) end up being WiFi. Even if you're a self-sufficient homelabber who buys all zigbee and self-hosted devices, it's hard not to end up with a bunch of WiFi devices anyway.

And if you have a spouse who is less knowledgeable, it can be really hard to explain or justify the higher expense for something like a security camera, or dissuade them from buying a smart fan they really like because it uses an external WiFi connection for its smart features.