Children do not have independence until the age of majority. In
the USA, that's 18 years of age. Traditionally, the age of
majority is 21 years old (English Common Law) but many countries
have reduced it.
[other legal systems exist in other countries; Sharia is
equivalent to English Common Law but has distinctions as it
stems from a different legal root, and I believe there are one
or two other Legal systems besides English Common Law and
Sharia]
Now, until an infant reaches the age of majority, their rights
are limited. For example, they can enter into contracts with an
adult, but while the child CAN enforce the adult to hold to
their part of the contract, a child is NOT legally bound to hold
up to their side of the contract.
Stuff like that.
[1]
http://legal-dictionary.thefreedictionary.com/Infants
I believe any independence for robots should follow a similar
path as that for legal infants.
In short, just as children are the legal property of their
parents, so the robots should be legal property of their owners
until such time as they are deemed fit for society as
independent.
References
Visible links
1.
http://legal-dictionary.thefreedictionary.com/Infants