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Answer 

No. If you can, you should give them the money.

Complete Answer

When you lend money to a family member or friend, you change the relationship with that person. You are now a lender and they become the debtor. Additionally, your values may now conflict - what's important to them may or may not be important to you. We all spend money on things that are important to us.

We all will, at some time in our lives, have a financial crisis and need some help. When and if a family member or friend asks for help in the form of a loan, use this occasion to really help them. In education we call this a "teachable moment."

Ask them "What happened?" Follow up their answer with "What will you change in the future so this does not happen again?" 

Then, if you can afford to, demonstrate the virtue of charity and give them the money they need with the condition that they will not ask you for a loan again.