I'm a bit ambivalent really. I grew up with knickers, changed to saying pants in my teens, reverted to knickers as a sort of joke somewhere in my twenties and have stuck with knickers , though occasionally still say pants! My DD always says knickers. My MiL who always wanted to be 'respectable' used to call them panties as she thought it sounded refined. She would have been horrified to hear that people think it pervy! My auntie used to call them 'blinds for the sitting room' which , as a child, I thought extremely witty!