Interview with the source, speaking on signs of bad luck her Nigerian American family in New York taught her:

Nigerians have things that are bad luck. Nigerians don’t go near cats because they have the devil in them. And Nigerians aren’t left handed, it’s considered evil.

What happens if a Nigerian kid is born left handed?

They’ll have to switch. Their parents would never let them stay left handed. That’s why I don’t know any left-handed Nigerians. And it’s considered bad luck to use your left hand to do things, like if you hand someone a cup, you have to use your right hand. 

Who in your family taught you this?

Everyone.

Your brothers and sister too?

Yes, everyone. Everyone.

So, do you still believe it?

No, no I don’t believe that it’s bad luck or the devil. But I still hand people things with my left hand because I don’t think it’s as polite. It’s not as respectful I think to use your left hand. 

Would your parents visit someone’s house if they had a cat? 

Sure, they wouldn’t care. But they would not get a cat as a pet themselves. Well also because I’m allergic and they wouldn’t do that to me.