[My works-on-my-machine] By default, I tether my phone. In the places that's not possible, the public WiFi is typically part of large scale infrastructure like

[My works-on-my-machine] By default, I tether my phone. In the places that's not possible, the public WiFi is typically part of large scale infrastructure like an airport. The biggest practical advantage of tethering is not security. It's repeatability. Sure security matters and I trust my phone's security. But not having to navigate other people's ideas of internet access is why I tether. Good luck.