I want to stay childless

Everyone tells me you'll want a baby one day and things like oh you're going to change your mind and telling me to stop being stupid because as a woman I should have children even to the extent of asking me who's going to care for me when I'm old . I try to be as civil and nice but they are pushing me, especially my friend who always says now "coming from a mom " and " I know because I'm a mom " it just pisses me off . I'd like to cuss them out in a nice way to fuck off. I'm fine being a godmother that's all I want no kids of my own .