Hey A., my son is 2 years old going to be 3 next month and he has been doing things like that for a year now, he does all his trucks and cars and trains in a row and his bath tub he does the same to the toys in the tub, and if they were to go out of place he would be screaming lol, He even gets mad at his own toys if they don't do what he "wants" them to do. i have 4 other children and they all did that at that age. I also think they learn that from us when we clean or put things away. Maybe on your next Peditrician appointment mention it to her doctor and see what she thinks. I hope this helps
S. Mom to 5 beautiful children, 16yrs,8years,6years,2years,and 10 months old, check out my son's journey at www.liamlockhart.com