where Crusoe lives - on a desert island, where he is the only human individual present, no concept of property rights emerges. in order for such to emerge there needs to be rivalry for scarce goods. it is true that goods on the island are scarce - his body and the standing place that it occupies, he also can not have a net and two pairs of shoes at the same time beacause the material for their production is the same and is not enough for both of the goods to be existant simultaneously and etc. but since there is no one else on the island - there can not originate a conflict for a scarce resource. BUT even though a CONCEPT for property rights might not exist, what is important is what the author of the theme have suggested :
A) as we know property rights are deducted from the human nature (onself is the dominion of his body - i.e. he is in direct control of it, he has individual subjective value scale and is the only one that can directly act in a manner according his values) - self-ownership is evident
B) I am quoting filc “property is just an object, an economic object of interest to man” - that is property is just a title that man has come up to distinguish a scarce resource from non-scarce. that is why filc is somehow confusing because air is of interest to me, but it is not my or anyone’s property.
C) of course Crusoe never refered to his shoes as his property, he just called them shoes.
D) I am writing this so that we can trace how come that when Crusoe is not alone he should be the one who is the ultimate desicion maker of the way a scarce resource(other than his body) is disposed of. we know about self-ownership, and we know about the homesteading principle and that is your answer. since Crusoe owns himself SO he can also own what he has “mixed his labour with”, that is why when Friday appears Crusoe can not legitimately go to him and tell him “you can not be on this island, only I can be on it(unless he has homesteaded the whole of it)”. this is very important because that tells us how exactly property rights over things outside the physical surface of oneself’s body emerge and mean (because of self-ownership and homesteading and mean exclusive control). it also implies that property and rights over property do not come into existance with the emergence of society - property exists as long as scarce resource exists (and this predates any society - it is valid in the case of lone Crusoe), and rights over property are derived through individual action (praxeology - i.e. Crusoe “mixes his labour with scarce goods”), so when an individual is alone he does not call his control over a scarce good a right, this is used only when there is more than one person, BUT the very legitimate claim of control over a scarce good is acquired long before the moment of appearance of second individual.
I think that what is imperative is exactly this - the chronological aspect - i.e. who did what with a certain thing in the past or did not do. What forcefull “conventions” society can establish as legitimate in order to steal someone’s stuff on the premise that what he did when he was alone does not count is non-sense, because it is like society is saying “private property does not exist at all”. that means that if society discards what someone has previously acquired through labour (voluntarily exchange) it actually tries to discard the very notion of self-ownership which as we know can not be logically discarded.
If society says that no private property at all exists, and does not want to use reason, but rather violance, this does not mean that property rights actually don’t exist, this just means that society is stupid and aggressive, disregards human nature and causes conflict instead of keeping the peace.