What doesn't count as character development?
I think most people assume by character development, you mean that a character becomes more mature, generally speaking, so let's say the character becomes less mature than before so therefore regresses into a worse person. Does that still count as character development?
Let's take an example. The character is kind, mature and respectful, but he turns into an insatiable violent beast who's the total opposite of that and does anything in his power to serve his own self-interest. Does that count as character development? What are your thoughts on this?