If I wouldn't have a choice but to sell my Bitcoin then I would do it. I can't starve my family so I could keep holding. There are still opportunities for me to earn and buy Bitcoin again but if the situation would ask me to sell it, I will never have a second thought of doing it if its really needed. Holding Bitcoin is really important as an asset and investment but we can't disregard the fact that we still need money to sustain our needs.
Family over your investment. That is the best decision that every investor can do. Worst is they will make themselves hungry or they will sacrifice some of their daily needs that are very important for them than selling their Bitcoins.
Bitcoins are everywhere. There are several things to earn it. Why do you need to starve yourself just for the sake of Bitcoin. What if right now it is up double digits and tomorrow it will go down twice as more? I'm also holding some Bitcoins but I will not let my family starve or at least suffer just for the sake of holding Bitcoins.