Crossing your arms to take off your sweater?

I always just assumed it was for style / to look sexy

I'm trying to understand (without emasculating myself by wearing a bra).

Having breasts makes it easier to cross your arms? I'm quite certain the difficulty in crossing your arms lies in using your pectoral muscles to bring the weight of your arms, inwards. Breasts don't strengthen the pecs so this doesn't make sense. I heard one person say women typically have narrower shoulders. I think that might make sense as there's less distance to travel.

Also, if the shirt does get caught onto the breasts, why would that make crossing your arms inwards, harder?

literally tore the arm of my tshirt a few days ago taking it off like this
been doing it that way my whole life, but first time for everything I guess

I tried doing it but I just can't. I just pull it over my head by grabbing on the collar. Have I been taking off clothes wrong my whole life?

Only girls can do it. Something about the way mens/womens clothing is sewn makes it a lot harder for guys to do. Also the wider shoulders etc. Google it!

yeah wtf i just noticed that too

It's not bones it's boobs. I'm a chestlet and I can take my shirts off the "male" way but the female way is still faster