I’m a quiet but fierce idelogue when it comes to the idea of voluntary transaction. My particular journey was hazy and short as I did not need a lot of convincing–the first step likely held the necessity of a state but that the size should be trimmed (to what extent was not known to me at the time). This was only a stepping stone on realizing the scope on which a moral standing of completely voluntary interaction implied.
I think there is an important clarification here:
Authority is not antethetical to anarchism–there are indeed many situations where it is respected and should be considered (though not used as an excuse for coercion). A stupidly simple example would be building your next computer–whom do you more likely trust for your decisions: the manufacturer, or a third party (e.g. anandtech) who has tested more options than would be feasible for you? What is a better illustration of division of labor than trusting those who are best at a given task?