Is the idea that "children are resilient" real or a myth?

People always say that children are resilient in the face of cringeworthy or worse emotional treatment or trauma. Is this true or does it only seem true because they have less experience to compare it to and so in the moment they treat an unhealthy or traumatic episode as normative?

Generally, do they not carry an aberrant idea of normality with them (and act it out) into adulthood? Do we perceive them as being more resilient than they are because they don’t exhibit stress responses?

I don’t have a position (other than testing conventional wisdom with a question) and am interested in others’ opinions. Thanks.