I’d even be interested in a parent of a 5 year old who’s been at daycare for 4 years.

It’s my suspicion that a second, later-in-life battering of a person with respiratory illnesses is in some part responsible for the longer average lifespan of parents. I expect the effect would be more pronounced if somehow parenting didn’t come with all the anxiety and stress, which I expect is a negative pressure on average lifespan.