I like the Parenthood pack. I like the assets it adds, I like the interactions, I more or less like the character values - and your average sim is only going to grow up with one or two positive ones on Normal Lifespan unless you really try (most likely Manners and/or Responsibility) so it can be ... while not exactly ignored, thanks to the pop-ups, if it doesn't suit a sims development, there are easy ways to minimize the impact.
And even with the pop-ups, after a while you'll start to remember which interaction affects which character traits, so even if your parent sim hasn't maxed out parenting, you can still direct some options. I just wish that Empathy was a bit easier to build up.
Parenthood also introduced School Projects, which I've used to help build a sim's childhood (and before HSY, teen) friendships (3 or 4 sims can work on a project together) Just be sure you have a lot of space for it, as they take up 6 tiles until they're complete.