I'm guessing people will go with the highest probability guess. It's like when people ask about religion. Most won't take "I have no religion" for an answer if

I'm guessing people will go with the highest probability guess. It's like when people ask about religion. Most won't take "I have no religion" for an answer if you're from a country/place where that's uncommon. They will still try to assume your family background unless you elaborate.