DNSSEC is notorious for breaking things [1]. I use it on most of my domains, but I would not just 'enable' it on a domain that I cared about and that had real users without a lot of thought and planning. Nor should you.
My understanding is that people break things.
> Just culture is a concept related to systems thinking which emphasizes that mistakes are generally a product of faulty organizational cultures, rather than solely brought about by the person or persons directly involved. In a just culture, after an incident, the question asked is, "What went wrong?" rather than "Who caused the problem?".
Prominent (and very effective) example: Aviation safety.
DNSSEC is both easy to break and hard to fix. https://sockpuppet.org/blog/2015/01/15/against-dnssec/