We live in a very Internet-centric world, but access to the Internet isn't as ubiquitous or as stable as we might like. And that's not even counting the devices that can't connect to the 'net anytime, anywhere, a.k.a. WiFi-only devices. Especially for the latter class of devices, tethering is one of the workarounds to this problem but it's, more often than not, a multi-step process. Not if you're using a Pixel or recent Nexus device, though, with the rollout of Android Nougat's new Instant Tethering feature.