If you want to buy the tag just so you can go to PA with family that's cool. At least you're able to. If you buy the tag and have no intension of shooting a doe hat's fine as well. It give you the legal right to be in the woods with a weapon.

If you buy the tag and shoot a doe that you don't want and it goes to waste is where I'd draw the line. If you take a doe and donate it that's fine. IMO If you shoot a deer it should be used either by yourself or someone who needs or will enjoy it. As long as the deer isn't just shot for the sake of shooting it and then wasted I have no problem with your reasoning for purchaseing your doe tag.