>>272256430
Did you miss the part about the invention of elastic? Ancient clothes were bad at stretching. Furthermore, the modern woman can afford a large and varied wardrobe, unlike women of the past. As for traps, ones that qualify as traps instead of hideous crossdressing beasts are rare in real life.

>dont always stick out 
Sticking out occasionally is enough, like how crashing occasionally is enough to make wearing seatblets the norm.
>and are quite malleable when hard
what