Why the f do none of the band T-shirts I want come in a female version

[PermanentTemporary]

Ive paid for tickets to see these arseholes [multiple groups of them] and not one single band t shirt comes in anything other than a male shape. Which is not comfortable or flattering. Twats.

The difference is that women's t-shirts tend to stretch, whereas men's don't.
So, no amount of altering a man's t-shirt is going to make it stretch over my 34g's.