Is it normal if a 40 year old woman can't cook at all?
imagine a women who burns boiling water, cuts herself every time she uses a knife for anything other than eating and generally ruins everything she has ever made in the kitchen, EVEN when she follows a recipe exactly to the letter, down to the last grain of salt.
Does such a woman "deserve" independence or should she concede defeat and admit that life is pointless and she should live at home with her mother until her mother dies, at which point, she will die because she has not acquired the life skills to make it on her own.