Wow! If that's not been restored it looks pretty tidy as an original. Very nice indeed!
It's nice that you have the history of it and that it's been used by your family for some years. Learning to drive in it and still having it is really special. To hear that your kids are now learning in it too is just brilliant. Hopefully they'll keep hold of it and keep it tidy for many years to come (once they talk you into parting with it of course!).
I want one now! I really like the little 411.