old iPad A1396

There's no reason why you can't set this iPad up for a new user.

Did you follow the directions in this link to set it up as new:

What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support

Note: Due to the age of this iPad and the fact it cannot ever be upgraded past iOS 9.3.5, there will likely be apps he may want, but won't be available on 9.3.5 any longer.

That is typically an iTunes error meaning you don't have the latest version of iTunes running on your computer, which you need. See this link for more guidance: If you see error 9, 4005, 4013, or 4014 when you restore your iOS device - Apple Support

You're welcome and good luck.