Where did you get your information?
I believe I got it from Pat Buchanan and Michael Kinsley while they were hosting a political forum right after the 2000 election and Al Gore's team was trying to get Florida electors to switch their votes...
The Electors are picked at the state party conventions, long before the election. It is not hand picked by the candidate nor is it family members.
I don't see how it matters when or where they are picked, it is how they are chosen that matters...I'm sure it is not random, I'm sure it is done with the intent that they can be counted on to cast their vote that falls in line with the party...why do you assume then that family members are not allowed to be electors?...if they are not allowed then I am wrong, but it seems to me if you cannot find anything that specifically bars them then they would be the most logical choice for being chosen...I am doing this from memory so I am allowing that this could all be wrong...I am too lazy to look, but if you can find any legally definitive rules governing the choice of electors I will gladly read them.