Helping Mother Dress

I am a man in my forties, twice divorced, with grown children, not presently employed, and not seeking employment at this time. I just moved in the other day with my mother, who is a recently widowed and retired lawyer and a healthy active senior citizen. I plan to live with her for a long time, possibly permanently, for economic reasons and to help her as she ages. Though she is retired, she likes to dress up nicely and put on makeup every day, even if she goes nowhere, because she feels it’s important for her dignity. A lot of her favorite everyday clothes require assistance from someone else to don and remove. When my stepfather was alive, he helped her. Now she wants me to do the same. I question the modesty of me as a man helping a woman in this way, particularly my mother, and the balance between modesty and honoring her.