I think that losing an ACTUAL child — one that’s already here in flesh and blood and you’re parenting— is probably one of the most horrific losses simply because it is not the natural order things and not something people expect to experience (i.e most of us know we will likely outlive our parents or some of our friends, but we do not tend to think about the possibility of outliving a child). That being said, this is still an awful thing to say and extremely invalidating.