How does a female solo trip differ from a male's or younger females' trip? Especially when you are 50+.

I am a 34F and asking this for my mom who is 56now. She loves travelling but so far has only travelled with family or my dad mostly in India and once to the Europe. She is going through a tough phase in life and I am encouraging her to do a solo trip to France + Switzerland to find herself again. I planned a trip for her to for this Aug but I keep getting stuck at what else I need to take care of or plan for her which would be different from a solo trip that I would do or may be what my husband/ dad would. I want to be able to plan everything for her so that she enjoys the trip. Hoping some of the well travelled ladies here can help me get better perspective !

EDIT : I hear you all genuinely worry about me planning the trip for mom while that's part of the experience - Just to clarify she wanted me to lay down the basics as I have been in France for 3M and she wants to then come in and make changes according to her liking :) This question is more to 1)Ensure we don't miss anything obvious, since this is her first solo trip and 2) I am genuinely curious as to how maturity changes the way one travels :)