Ask HN: Why hasn't a readily available universal mosquito trap been developed?

Basically the title. Yeah, I know there's mosquito repellent spray, but I'm not keen on spraying noxious chemicals all over my clothes/skin, especially not in my own home.

It seems like every few years new technology gets developed to fight/trap mosquitoes, but yet when I browse Amazon and/or my local hardware store for solutions, there are none to be found (aside from the usual snake oil). Why is this?