Contact name is red when sending a message?

On a Mac and/or an iPad when trying to send a message, the phone number(s) and/or name(s) used on the address line of your message will turn red if anyone of them is (i) associated with a non-Apple device and (ii) your iPhone is not set to forward a message using SMS from the Mac or iPad in question. There is a simple fix ... you have to authorize your iPhone to forward your message as a SMS message. This is done device by device on your iPhone in Settings/Messages/Text Message Forwarding. Since it is done device by device, you could see this red line behavior on one or more of your Apple devices and not others of your Apple devices.

When you try sending a message with a red address line, you get a notice next to your message that the message wasn't sent. You see a red "I" on a circle and if you click on it you get a dialog box with an option of trying to send the message again. And you can keep doing that again and again and the message still fails to send. Pretty frustrating if you don't know about the above-mentioned fix.

So here is my question. Instead of just giving the user the option of trying to send the message again and again (and failing each time), why doesn't the device (Mac and/or iPad) lead the user to the fix noted above? Allowing the user to get into what seems to me to be an endless loop of try again and failing seems to me to be very un-Apple like. At least to a long Apple user like myself.