I love to paint. So while it’s perfectly acceptable to leave those clear cockpits unpainted, I just can’t resist painting them.
Some people say that leaving them unpainted kinda takes something away from the model itself, almost as if you didn’t finish painting it in the first place.
If that’s true than I guess you can say the same thing about clear flying stands as well for that matter. Regardless I like to paint, so I personally have no problem painting both the cockpit and flying bases for my models as of late.