What age should you been when you know about it.

I ran into two-three young and I mean 14-16 yr old furs. In Cards against humanity today. And they were playing with the furry pack, and it involved everything from barbed penises, to dog cum and knots, ect.

What age do you think as a furry it should be appropriate to know about these things in the fandom. I mean yes kids know about sex, but....fur sex is the more kinky extreme side of sex in my option.

But what is your take on it?