VPN by Google One is shutting down for good

Same reason I'd use any cheap easily accessible VPN.

To get AT&T off my back every time I pirate some anime or a new movie.

It's cheap and easy for me to use it while traveling around and going on god knows what public wifi network. I am not using google VPN for privacy, but using it for some sense of security out of my home. Already paying for Google One storage, so this was a nice perk.