I used to use a liquid foundation every single day, when I was younger. I was acne prone and was convinced I needed a relatively thick layer to make my skin look healthy.
Now I'm almost forty and I just let me be me. I don't wear makeup or anything. I am lucky in that I work from home so I usually have nobody looking at me. Even when I go out with friends though, I figure either they take me as I am or I'm not going to worry about it
Oddly at this point it seems more to me that the stuff I put on my face might cause skin irritation, that I'd rather leave it bare and "healthy" vs putting things on it which might cause it to break out or have rashes.