I'd say to look into the changes that have been happening in kindergarten and nursery classes over the past several years. The increasing push towards academizing these classes has been shown in so many studies to have serious, long-term negative effects. I was going to include a link but all you have to do is google "academics in kindergarten" to find a myriad of articles on the topic. Little children do their best as long as they can, but after several years the age-inappropriate teaching and demands placed upon them begin to take their toll.
Obviously, there are lots of other contributing causes . . . sugar, screen time, lack of exposure to meaningful, concentrated activity and presence of mind in the adults around them, etc. etc. But given my background as a Waldorf early childhood educator, I really believe that a lot of troubles later on stem from those early childhood experiences.
Oh yes, I agree totally with you! I'll be sharing my thoughts in my next post! I believe people like you need to speak up and educate first time parents and parents of newborns through 5 year olds that some changes need to be made! Thank you for reading my post!
I look forward to your next post!