I often like to say that for those that think order can come from chaos, they have never seen the destruction that can come with a male toddler in a room of toys in a matter of minutes. Somehow, the mess doesn't clean itself up!
With the idea of mutations, it has even been genetically proven that if we calculated the number of mutations we have in the human body, we can only go back about 6000 years to the original, mutation free common female ancestor we all share.
That room you noted, bearing toys, is, itself, less orderly than a similar room devoid of toys (which is less orderly than a similar "room" devoid of both room and toy).
Regarding those mutations, they would merely mean homosapians did not come by entropy sufficient for genetic mutation until circa three thousand, nine hundred, eighty six years prior this common era.