Certainly almost no one in Portugal would have a problem with a woman or girl making up in the metro. I find it as natural or as insulting as reading a book. I doesn't really bother anyone and I find it awkward to see that such rules were invented and imposed by someone only by arbitrary will.

Although I've to agree with kireikoori, most women really look better without all that stuff on their face.

That and high heels shoes.
*hides* (please don't hit me )