On Mac, a DHCP-assigned address is shown on the network control panel. It's much easier.
It's even easier than that in linux.
I'm told my ip address every time I turn my machine on.
Mom: "What's a control panel?"
I can just tell her to reboot her machine and look for the only strings of numbers she sees on screen. :-D
It doesn't get any easier than that son. Mom's not pre-disposed to something called a "control panel" any more than a "command line", however she shuts down/reboots regularly.
There's many instances where linux beats both.