what if another family member would take over soon but isn't of age yet, or is otherwise occupied but intends to take over later? I don't think families should

what if another family member would take over soon but isn't of age yet, or is otherwise occupied but intends to take over later? I don't think families should give up inheritances, especially not for nothing. on the other hand there are corporations not renting out offices and apartments because appreciation will get them more money. this is what should be fought by laws, not the previous situation