Once your child is born, the sovereign should have the ability to decide which type of upbringing the child will receive. That way you could gear your child towards more of a fighter build, or mage, etc... Basically it would offer a template stat depending on what you are planing on doing.
Some other people also mentioned it would be nice to be able to select the portrait
. If at all possible, bring up the designer would be even better! Maybe once the child reaches maturity?
Hope this helps,
V.