Should stillborn children be sealed to their parents?
I am just another 'lowly' User/Patron ...
[ And, I happen to be a Member of the Church ... ]
Short Answer: 'No'.
Here is a "Knowledge Article" in 'FamilySearch':
I hope this helps.
I am just glad I could help/assist.
That is what this "Community.FamilySearch" Forum was originally established for ...
Users/Patrons, HELPING / ASSITING, Users/Patrons