I only know of very FEW little ones NOT being full of excitement, joy and exuberance at that age.
I think these are the ones that are so hyper and impulsive they don’t even stop long enough to take a nap or even eat at the table.
(Robot voice): Not. Allowed... Good. Democrats. Do. Not. Feel. Joy.
Especially boys. I always tell my daughter to watch little boys when we are out somewhere. They are so full of energy and adventure and curiosity. A lot of girls are, too, but boys more so.
My son was on Ritalin for awhile when he was 7 but it made him like a zombie and he had no appetite. It was for his teacher’s benefit more than his, as she practically begged me to have him medicated. Boys and girls learn differently and should be taught differently, IMHO.