A family business is worse. You will always be considered an outsider.

The idea of greater sympathy is a fallacy. You are simply closer to the people with power, they don't want to seem cruel because that drives away talented/hard workers, they have to make concessions. They don't have the resources to make people expendable yet. They don't get the luxury of having 6 layers of mgmt to shield them from being remorselessly cruel. As soon as they have those layers you will see what they really are. Ask me how I know...

You get the added bonus of some borderline mentally challenged family member will be put in a position of power. The other family members know but don't want to hurt their feelings. Then you get to be drawn into awkward family squabbles when you have to appeal to the other family members that their actions are hurting the business and need to be corrected, basically babysitting your own boss for them. Without the benefit of ever being in charge yourself.