It really doesn't make sense...

It has recently come to my attention that having big arm muscles isn't attractive on women like it is on men. While some men don't mind it, most would likely prefer skinny arms without any meat. Who made up the rule that attractive arms are weak ones? Why are skinny arms promoted on women rather than ones with muscles?
Truly, it doesn't make complete sense because women in many cases do all of the cleaning around the house. That takes muscle, I'm telling you. Washing toilets, vacuuming, but especially washing the floor ( and especially if you do it by hand on your hands and knees like we do at my house). Now, carrying children is an entirely different muscle strain, but it certainly is one. If all of the men carried their kids around the house all day instead of the women, then maybe it would be more reasonable for women to have extremely skinny arms.
OK, I still haven't answered my question, so here we go; I'll try to see it from the world's point of view. I guess that in the world's point of view, the first reason that women aren't supposed to have such big muscles is becuase of their supposed "dainty" nature. Women are seen as more calm, reserved, housekeeping ladies. While the times are changing, and our society is becoming more equalitarian in nature, I can see a slight increase in women's sport activity. I guess that muscles on women are more accepted than they likely used to be.
Perhaps a second reason that men don't want big muscles on a girl is becuase they don't want her to be stronger than they are (or even close). Men are raised with the image of a strong, tough, and manly man in their minds. Who wants their wife to be as tough as them? No one (until their stuck in a cave and their wife needs to lift a rock to free them).
The final likely reason for women's muscles not being as widely accepted is the fact that our society portrays the "idol" woman to be a skinny woman that is weak. This is SOOOOOOO wrong, and I hope to be able to see the world change in its views within my lifetime. I believe that this hopeful change has already begun as the media opens its lenses to the sporty side of the gender. They're allowing sporty women to be viewed as attractive. Maybe someday, that will include the incredibly strong women with muscles in their arms and legs (not just their abbs).
The reasons that society views less muscle on the arms as more attractive are that women are seen as dainty, skinny and supposedly weaker than their husbands. To me, these reasons aren't very strong, so maybe someday the idol woman will have muscles of steel within her arms (not just her heart). Someday, the media will portray real women as attractive women (because real women are the attractive women). Tata. Have a wonderful day.