Networking is crap. I mean, sure, it is amazing that it works at all, but then the ways in which it doesn't work are sometimes really low hanging fruits of utter ux stupidity. A concrete example is my home router for my ISP that is running the DHCP server, and making itself the DNS IP. But then the router flakes out and can't serve DNS requests sometimes. So on my Linux laptop I manually added some public DNS server IPs as backups. But there's nothing built into Android to let me do that.