I read you reply again and thought I adres the first thing you say......hope you don't mind.

A question I have asked myself is: will anarchy automatically lead to capitalism?

It's more the other way around. If you have voluntary trade (capitalism) without coercion then that in and of itself IS anarchy. (and that can also be that there is a commune that decide to live the communistic way but every individual has to voluntary want to do that, he/she can not be forced without agreeing)

I give a little example; to make something clear.

Let's say ( in situation A) I mow the lawn for my neighbour and he washes my car (we both agree and decided we are better of) than that is a voluntary trade.
(Situation B)
But lets say he has a car washer profession and he has traded his car washing for money from yet another person, then that is a voluntary trade too. (That other person trade with more car washers)

Situation C
Now let's say he want's his lawn mown and he offers me money that he earned instead of washing my car, and I agree and he agrees than that is a voluntary trade also.

Situation D
If I use that money to offer the money to for instance someone who want to have the money in exchange for washing the windows of my house. Again a voluntary trade. No one was forced to do something he/she did not want to do, and all agreed and wanted to exchange.
That is what is described as; the free market.

Also notice that if I mow the law for my neighbour and he washes my car that there is NO employer and employee or boss and employee.

And this goes for all the situations...even in the second example of my neigbour working for cash doing carwashing as a profession there it's called employer/employee relationship but it's actually only a voluntary trade between my neighbour and the person offering him money. And the same goes for the other two.

Employer Employee are terms that come with statism. Then it's easy to create divisions as rulers.