What do you mean by 'these days'? I'm sure there has always been women who like and dislike muscles. I just think that the attitude towards men who want to change their body and pamper their self changed a couple of decades ago which started a hype which is now declining, it seems.
1) If the guy is intensively good looking (face features) wears nice clothes/hair... thats enough to find them physically attractive.
2)There arent as many guys who are built
3)some girls just dont like it
It's funny cos I hear it's really different in America (it's actually weird to not be muscley). My ("normal build") boyfriend from the US came to Britain and said it was really weird to see a lot of skinny guys and he felt a lot more "normal" and accepted here; people can be like what they want to be like physically and be accepted lol. In the US people would always comment on how skinny he is... I don't even find him skinny; slim at most, but really, normal. One girl even suggested working out... but he's really normal so i was like wut. ~_~;
When women conceive children, they start to look for males that have that skinnier "nice guy" look and will more likely to be loyal and a good father and provider. It's only for reproduction that the muscle bound bad boy is needed. The use of contraceptive pills means that women feel like they are pregnant when in fact the pill prevents that from occurring. Hence, since the 1960's a taste for skinnier, more effeminate men has slowly developed and since it is exported in the media it has become an accepted norm.
But of course in practice if you present a girl with a toned and built body there will be no questions asked.