How I imagine TWEEN/PRETEENS in the SIMS

I think preteens would be a great addition to the evolution of sims. In the sims 4 when s child become a teen there is no progression shown of the effect of them growing up it like puff, they’re their just sprout up from a small child to a giant teen that are so close to young adult with barely any differences.
If we can have young adult and adult, then why can’t we have preteen and teen there are far more mood changes progression growing up from a child than there is with young adult to adult.
Behaviour:
I imagine preteen will struggle with dealing with the child like hobbies and growing up to more grown up hobbies being still finding enjoyment in some of their toys and depending on their personality if they are embarrassed by it.
Interaction:
The interaction with younger kids and older teens will come into play with wanting to be more accepted by older teens though trying not to act childish when ignore and not want to be though as child still either secretly playing with younger kids or distancing themselves at times depending on individual relationships. Asking parent about why they feel these new emotions.
Gameplay:
Being able to have your first crush.
CAS:
They will have a slight body shape but no muscle definition. (Girls have a slight chest bump)
They would have more grown up facial feature like teens (except the nose is still like a child’s) but softer.
They are shorter than Teen but taller than children.
Preteen clothes are a mix of teens and child’s clothes.

From Preteen to young adult:
https://i.imgur.com/ve2NVkI.jpg

Boy version
https://i.imgur.com/ZcHWJ55.png

In my opinion I think the sims 4 needs a preteen for the sims to be more engaging and real for the family dynamic. I also think is the best way to show a growth spurt.