I’m so sorry if you’ve had a negative encounter with a Pit bull. I think the issue is way more complicated than the “breed” of the dog. I recommend you read https://sarcasticdog.com/bronwen-dickey-changing-conversation-misunderstood-pit-bull/ for a brief overview of the book “Changing the Conversation About Pit Bulls.” I’ve had experience with an aggressive dog (NOT a Pit bull), and it was traumatizing. I believe that the issue is with individual dogs and the way they are raised. I was once nervous around Pit bulls because of all the things I read about them, but then I met a few and realized they are just like any other dog.