I have really enjoyed all these thoughtful responses.
I do have a skin condition and feel better in public when I wear some makeup. I go for the more natural look and just feel like I don't get stared at as much. No one else may really give me a second look when I am not wearing any make-up but I do feel more confident and less self-conscious with the make-up on. I don't wear it when I'm at home and I wouldn't die if people saw me without any make-up. It is kind of a security blanket though I guess. Is it okay to have any security blankets or only unnecessary when they are about appearance?
I think of the people who never go anywhere without their purse/bag or cell phone as similar to those who take great care with their appearance. Maybe they like the way it looks, want to fit in or feel the need to be prepared/connected even though they aren't leaving civilization behind. They nearly always have it with them though and feel more together or secure with one even though those items are not exactly necessary. On the other side there are people who confidently go out all the time without carrying anything. Interesting to think about how some people might increase their confidence or feeling of security in an external way with the way they dress or something they carry where another person gets theirs from the inside somehow. If it is a positive boost for someone then I don't think it matters so much if it is unnecessary or external. If it becomes a situation where the person can't seem to function at all without that external thing then I feel it becomes more negative in their life.