For me the problems with Picard-as-father are:
- I remain unconvinced by the Crusher marriage to begin with. I prefer them as friends with a long history, and it's uncreative that deep male/female friendships always seem to eventually turn to romance.
- It's stifling that success always equals reproductive success. I like the idea of Picard as a man who never had kids, maybe never even married, and this doesn't bother him.
- It feels repetitive when you read TNG and Titan novels in quick succession; we have two series about captains married to their subordinates who have an obligatory scene every novel where they worry about toddlers. I prefer the series to forge their own identity, Riker/Titan is the better fit for fatherhood/family issues, in my opinion.
- Toddlers aren't very interesting to read about in an action/adventure series.