No, under anarchy you can choose what to do with your capital goods, that's the point of freedom.

Having other people use your capital goods and sharing in the increased productivity is often simply the best option for both parties, so this will happen more often. It's just not efficient if every worker has to build his capital with hard work for many years before he can start working more efficiently with capital goods.

Imagine A is delivering packages with his bicycle (capital good) in his own village. He can do 100 packages a day. Now B gives him the option to rent his car (better capital good). Now he can do 1000 packages per day over 7 villlages.

This is obviously a win / win / win situation. A makes more money because he is much more efficient, even after paying the rent of the car, B gets a passive income on his capital because of the extra earning potential he provided and everyone in the 7 villages get their post faster and cheaper.

And somehow socialists manage to paint B as an 'evil capitalist who is exploiting the worker'.

How long would this worker have to go on his bicycle through the rain, heat and storm for a low income before he could affort to get this better capital good (car) by himself? Ten year? Twenty year?

You see how much this 'evil capitalist' (B) adds to the improvement of the worker (A) his life? Is that exploitation? It's just the most effective way for free people to cooperate to make everyone best off. That's why it will flourish under anarchism.