Mine too at that age. I didn't know it is so common. It was his first obsession, later came Playmobil, Lego and now football. I believe there is a correlation

Mine too at that age. I didn't know it is so common. It was his first obsession, later came Playmobil, Lego and now football. I believe there is a correlation of interest to construction equipment with certain traits and dexterities later.