Emily's Cat
Rarely prone to hissy-fits
Yes, it is reasonable. In fact it's economically beneficial because it encourages risk taking and entrepreneurialism. There is a well established legal mechanism for doing exactly this. It's called bankruptcy law.
It encourages irresponsible, unsound risk taking. It introduces moral hazard.
Bankruptcy is a last resort for mitigating the impact of a risk that could not be avoided. It's irrational to encourage risks that are avoidable, because there's a safety net that makes it "someone else's problem".
Loans aren't "favors". They're contractual agreements. Creating a system where being "nice enough" lets you default on your contractual obligations without consequence seems exceptionally compassionate.