Regular townies turning into spellcasters?

This is disappointing. And they wonder why we are always fighting each other. A toggle would work for everyone. And we all know deleting all the Sims from the bin who might have this ability just makes the game generate more. I understand why some people didn't want any vamps in their game and the point was to never study vampirism and that would keep townie vamps at bay but at some point that no longer worked for them and they still saw vamps (and if they failed to not open the door) and here we are again, with townies being able to do this, too. Or if you just want one and enter the portal that opens up the game (from my understanding) to make townies into spellcastors, too. I get both sides of the argument, I really do, and why Maxis why can't you just start adding toggles for townie generation or not...let players have their one vamp or their one spellcastor and turn off townies. I hope they study from TS3 how to do this, one day. ETA: stuff like this is why I didn't buy C&D I didn't want strays, but a toggle could have worked and let me have my one dog or cat.