I'd say the YoungStars, but, they're blates NOT Kiddie Coasters, they're Family Coasters. They're too big to be Kiddies.
I'd STRUGGLE to say the Vekoma Roller Skaters are Kiddies either, I'd say they're family. They're at least at the top end of Kiddie coasters.
Same with Ben 10 actually. Troublesome Trucks is a Kiddie, but, Ben 10 is like, 65ft tall... And not actually "aimed" at small children only, but, the whole family.
The YoungStars are defo Family Coasters though, or I'd answer this with Thunder Mountain or Colorado Adventure...
As for ACTUAL Kiddie Coasters...
And all the clones <3 Amazing <3