What if I want to cut my daughter's hair?
Did you talk about with her mother?
I do things that interest me. Who cares about my wife or others.
It can be hard to deal with long hair on a child especially if they don't sit still. So it is okay to feel frustrated and you should talk to you wife about how to deal with it.
I can't keep her still and it's my way of disciplining her for being my daughter.
You should remember that it is the child's hair and will affect how she feels about herself. You should not cut her hair without her and her mother's consent.