Dd stopped feeding herself. In fact, even after ds started feeding himself I still found myself feeding her on the odd occasion. He dressed himself before her too (there's 2 years between them).
I chose not to comment and just got on with it rather than focussing what was going on but would always heap the praise if either if they did it alone.
Eventually she realised she could do more than him and began taking pride in that, but it was a natural transition