Who decided on this???

Why is it that my children's favorite toys are always the size of my thumbnail? Why? Who decided on that? Thank you whoever you are. I will have wasted approx. 2.65 years of my life looking for your toy because it's lost somewhere. Imagine that!! Lost?! How could that have happened? Luckily I will be able to find it when I vacuum. Oh but then I guess that doesn't work either. Hmmmm. Again I ask.... Who decided on this?