How long does a childhood/teen phase last?

I'm having a similar problem, my children and teens enter a phase and stay in that phase forever, but not only that, I can't have the parents ask about the phase anymore. That option is gone along with "force to" and "cheer up parent" that you use on other parents in the family. There may be others missing that I don't remember, but the parenting options do appear on other families. It's just my main family that some of the options have disappeared which is really sad to me. I've removed the mods folder, repaired the game through origin, and deleted cache. I've also tested out moving the family to another household, and cheating their parenting skill down to 1 then back up to 10 again to see if there were any changes.