Choosing who you are

[Shell B]

I think it's reasonable to assume that SenseMaker meant that nobody chooses obviously inborn traits, such as skin color, sexuality, gender, arm length, etc. The statement does just fine for a casual conversation. It only doesn't hold up when you start thinking about things people can choose to be, which are not typically to what people refer when they say that's what they "are." It's common enough vernacular that it can be understood to mean inheritable/inborn traits by most people in light conversation.