russ_watters said:
You seem to be very hung up on the issue of physical strength differences between the sexes. You shouldn't be - it isn't a big deal.
On that note, I'll mention that women find ways to compensate for lack of physical strength, so aren't limited in what they can do when it comes to a work environment.
I work with a male technician out at the research farm, and he's suffering the consequences of a lot of past injuries now (he's fairly close to retirement age). When he started working here, it was mostly with men. Because they had the strength to just do whatever they needed to do by brute force, they did...and as a result, he has had shoulder injuries, back injuries, etc. Nobody thought about it then, as he will explain it...they were tough guys and you don't complain about the pain.
Now, we have a predominance of women working out at the farm. I'm pretty strong, but not as strong as some of the other men there by a long shot, and the other women I work with are not nearly as strong as I am. Yet, we still can do everything we need to get done. Our technician will say, "You work so much smarter; why didn't we do this years ago?" Two of us women can't carry an anesthetized sheep from the surgical prep area and then lift them to a surgery table on our own without hurting ourselves (I have done it in the past, but I'm going to be awfully sore the next day), while two of the men who previously worked there could. So, we use other methods. We anesthetize them next to a cart and as soon as they get a bit tipsy, we give them a nudge sideways so they lie on the cart for surgical prep, then bring the cart up to a hydraulic table, roll them on, and then raise them to the surgery table with that.
As a more common example...carrying a heavy sack of groceries or something else of similar size. Men might have better forearm strength to just hold onto the sack using their arms alone, but women can rest it on their hips and use less arm stregth to carry the same size sack.
With regard to the boys vs girls question, just to reiterate, age matters. Since you asked about "boys" vs "girls" and not "men" vs "women," you could have been referring to children. There really is no difference in young children. Pubertal girls briefly surpass boys of the same age, because those boys are still pre-pubertal. Once boys go through puberty, they gain the advantage, and that remains the case throughout adulthood...assuming all else is equal in terms of fitness and training.