Colonies should not expect favors from their old colonial powers because of several reasons. The old powers do not have the resources to help out the new colonies. Plus there are differences in the beliefs between some of the newer colonies are their old counterparts. Countries should not expect favors from anyone, they have to rely on themselves.
I do not believe colonies should expect favors during time of war or famine from their old colonial powers. I believe when a country is experiencing famine then the world, or somebody in it, should step up to help by bringing food to the area. In times of war, I think these colonies should look to the UN for guidance and assistance, if they are a member.
As a colony of a larger country, a lesser developed nation is afforded certain support from their colonists. Once the colony has asked or sometimes demanded independence from the colonists, that is what they get. There is no obligation of aid from the colonists. In fact, it is that support that the colony is actually separating itself from, along with whatever governmental rule the colonists had.
Colonies should not expect favors during times of war from their old colonial masters because those countries are now independent. America doesn't ask Great Britain for help--we fought for our independence for a reason. African and Asian nations are on their own and former colonial powers owe the nothing since they are all independent now.
No, I do not believe that colonies should expect favors during times of war or famine from their old colonial powers, because the colonies are no longer under control of the colonial powers. If the colonies were still dependent on the colonial powers, the powers should help them because they have some responsibility. If not, the colony must fend for itself.