Ideally folks should be subshells (unless you're on a strange system or
legacy system).

I have never thought of myself as subshell, even on a low carbohydrate system

netstat is now mostly obsolete. 
Replacement for netstat is ss.  
Replacement for  netstat -r is ip route.
Replacement for netstat -i is ip -s link.
Replacement for netstat -g is ip maddr.

Microsoft (Windows, that is) and Apple macOS have no knowledge of ss.

That is why I use netstat often, but never netstat -s to diagnose routing. (Hi, Randy.)