@lanlyn thank you. I do tend to let the sims do their own thing mostly. That way I see things happening that are fun, and I would never have thought of getting them to do them. Years ago, when I got frustrated with family trees breaking and before I had any mods, I used to make groups of 8 unrelated YA sims and focus on skilling them. I'd give them a huge house full of things for them to do and watch what happened. They rarely left the house, so I didn't become familiar with the townies of the various worlds. But I got a lot of skilled sims to use in my videos as my own townies I place into empty worlds made by other people.
I think there will be a variety of 'interesting' happenings in the next episode of Perfect Genetics Challenge as a few unexpected things have occurred in game play since the end of this most recently posted episode.
The thing about having teens instead of children is there is so much more scope for mayhem and unexpected happenings. And there are a few skills the teens can do that children can't. And learning some of those skills can get them into unexpected trouble at times.
I'm glad you've been enjoying the videos. Happy Simming