No, it isn't.
If you want to get 1, you have to mate 20 times.
If you want to get 5 (for example, just the haircut), you have to mate 100 times
If your tribe, composed by for example 5 people, want to have it, you need to mate 500 times
If your tribe want to have all of it, then they have to mate 1500 times.
All of this in one week and having good luck.