This belief that driving something that handles like the gren first, makes you safer and better, is kinda dumb.
The gren goes where you point it. The behavior is predictable and smooth. It just doesnt return to center, which in and of itself, is NOT inherently dangerous, it just means you need to do it yourself. Any danger from it, is from the expectation that it exists. Knowing that it does not, and adapting to that, in no way makes you better at driving cars that do return to center. One does not drive an automatic better, just because they can drive a standard.
		
		
	 
We have 3 vehicles and twins that just turned 16 this week-
2006/7 FJ Cruiser that we have owned since new
2021 Ford Bronco First Edition
2024 Grenadier
The Bronco is the easiest for them to drive-  Tracks straight, blind spot and cross traffic alert, AEB, front and rear parking sensors, 360 camera, reasonable blind spot
FJ Cruiser -  The one they will be driving-  No tech, No Carplay, No Bluetooth, no cameras, horrible blind spot.  Decent on the highway.  Sat in a lawn chair and had my daughter change the oil and my son rotate the tires.  I reminded the kids that I have had the car longer than I have had them
Grenadier-  No BLIS + no return to center + plus doesn't track as well on the highway.  I am not saying never, but its a last resort that they drive this.
Wife walks to work and I have a company car, so they really could be driving any of the three.  The best option would probably be to sell the FJ and buy a new Corolla or Civic with new tech.  My wife would kill me though.
New drivers have a lot to learn, there is no shame in giving them an advantage, or the Grenadier's case a disadvantage.  Sure they all "should" be able to drive stick, double clutch it, no power steering, no power brakes and have non return to center steering, but why make it harder...  
If you have the means (likely you do if a Grenadier is not your primary vehicle), then why wouldn't you avoid trouble by giving your kids something easier to drive?