There's a world of difference between a mortgage (where you own an asset of similar size as the debt) and credit card debt.
[1] http://www.nasdaqomxnordic.com/bonds/denmark Select expiry 2053, no deferred amortization.
However, there are places where mortgage backed assets depreciate [1]. There may be other places this is true, though I don't know enough about markets in northern Europe to say if this is an issue there.
1. https://www.rethinktokyo.com/2018/06/06/depreciate-limited-l...
When housing prices are inflated and are at risk of correcting as a whole, it can be worse than credit card debt.