How many sims are you actually playing with at a time?

Not just how many are in your typical household. I’m curious to see if I’m weird or if everyone else is doing the same thing. How sims per game do you actually flesh out and focus on? Do you have a main character sim? Or do you focus on developing multiple sims at a time?

I’m kind of a control freak when it comes to sims. I start a new game every time I want to make a new family. I turn off aging for inactive households and all of the neighborhood stories options. I prefer the premade characters to random townies. I usually have one sim that I want to tell a story with, and I start them as an infant so I can collect bonus traits and milestones as they grow up. This means I have to make at least one parent for them. The parents need to raise my main sim, but otherwise stay out of the way. They get rabbit hole careers, preferably that keep them occupied frequently and pay well. Sometimes they have other children so my main sim has siblings. My main sim might end up with a partner and children, but they might not. I’ve been doing this model since I started playing sims 2 in 2005. Basically, all other household members exist only as supporting characters in the main sims’ life.

tl;dr: I’m really type A in my sims games and only focus on one sim. Are you the same way or are you actually using all your household sims?