The anonymity aspect of it always confused me. If anything, bitcoin and almost all other cryptos are the ultimate surveillance state currency. Every single bitcoin, no matter how many fractions it is broken into, is traceable through every single transaction it has ever participated in, all the way back to when the coin was first mined.
But you (theoretically) cannot know who mined the coin, or who is actually the holder of the coin, thus the anonymity. Though currently this is getting restricted as governments require more ID verification from businesses dealing with crypto, which links up your coin to a real person.