Ohh fuck yes, I support antivirus, but only on Windows, maybe, possibly OSX. If you give bare Windows to a kid, they'll have viruses as soon as they learn to use Google.
TBF, Fam gets my guest network. It's not allowed to touch anything in my house, they can only route through. DHCP sends their DNS to 4.2.2.2 and 8.8.8.8, They can't even touch my DNS, they can't see any of my home automation and they can't see each other. They can push the connection as hard as they want, the QOS won't let them take priority.