One of the nice aspects of borrowing from a 401(k), if one has to borrow, is that the interest you pay is being paid to your own account. You're essentially paying yourself rather than paying somebody else the interest.

Retirement funds are the security that you're building up over the course of your working years and you don't want to put them in jeopardy. So if a person is going to do that, they should really make sure that the payback is there, that the means of paying back the loan is there.