I think the sensitivity expressed elsewhere pertains to the deceased children of still-living people or where living people are still in the family.
Frankly, if we are trying to paint an accurate picture of a family, including deceased children should be a must. I'm working on a genealogy of the town of Schwenningen, and I include all births recorded in the church records-- even those who were stillborn. If I didn't, especially given the pre-1850 infant mortality rates, it would look like women took several years off between children. Some of the women I'm documenting had 15-16 births; they were lucky if half of them survived infancy/childhood.