In the last 5 US elections, three have featured a president's child or wife: 1 president has been the son of another president, 3 presidential candidates have been a wife / closely associated nephew. Previous president elects have an advantage that they can use their knowledge and leverage their popularity through the media to facilitate their own child's ascendancy to power. Thus, elections dominated by certain influential political families and governments run by them may become a norm. Families typically have more deep-state and industrial connections and are less "one of the people" than "one of the corporation and deep state representatives", than vox-populi representatives.
If the US constitution contained a clause barring family members from running for office, perhaps it can avoid this kind of "political corruption" of its democracy.
What did the founding fathers think about that, was the political climate so different that they didn't consider it?
Does the US benefit from elite governing families? What laws do other countries have for it that can be applied in the US too?