Earlier quoted context omitted.
Came here to say this. We got 10 instead because we have 10 fingers to count on.
And when was the last time you counted something on your fingers that was more than 3? Also, quoting parent's link: > It is possible to count to 12 with the thumb acting as a pointer, touching each finger bone in turn. A traditional finger counting system still in use in many regions of Asia works in this way, and could help to explain the occurrence of numeral systems based on 12 and 60 besides those based on 10, 20…
???
I'm not talking about me, I'm talking about the thousands of years of human history that got us here?