Why talk specifically about children when the uprising on mental health issues has been seen across the board, from kids to adults and elders? It doesn't seem l

Why talk specifically about children when the uprising on mental health issues has been seen across the board, from kids to adults and elders? It doesn't seem like a smart stratification if you want to find the correct cause. Also, multiple twin studies show how parenting have negligible effects over life outcomes, so I am pretty skeptical of this theory.