Average age for potty training
My mom had her four girls trained by a year, same with her grandsons. For me, I wasn't as good as she was! Mine averaged in at 2 years. I had one trained at 18 months. The oldest they were trained was 3.5 and that was our youngest and my hubby potty trained him.
So the average age will depend on parents, child and a whole lot of other factors.
Don't worry though, your child will get trained!