Starbucks is to coffee as Meta is to privacy. They sell sweet flavored drinks.

No one's going into Starbucks for 'coffee', so maybe you were the one who was self conscious for some reason ? not sure why you'd be weird about a beverage they actually serve, not like you were asking for cat milk or something? were you?

On a side note however ;) at Starbucks Reserve in Thailand, my partner (a coffee nazi/aficionado depending how you view it) said it serves the best coffee she's ever had.