We let Jaiden brush his teeth the other night. I had to assist him at the start for him to get used to it and to help him. Then later on, we let him do it himself.. he started brushing his back gums where he didn't even have teeth yet and when I guided him to brush his front teeth, he would just bite and chew on his brush lol.
We'll be buying him eatable toothpaste because he just eats the toothpaste off and instead of gargling and washing his mouth, he just drinks the water haha. It was cute to watch though.