Sorry if I didn't explain well enough- Pitbulls can be both mean and sweet... But not ALWAYS mean. Some people have loved and cared for their pitties- and turned out to be sweet dogs. Some pitties have been trained to fight, or mistreated- this can cause them to be aggressive
I found this article very interesting.
https://www.foundanimals.org/pit-bulls-bad-inaccurate-reputation/
We should all read it.
I hate the inaccuracy that all pitbulls are mean, agressive dogs- The human is responsible for not raising it right!