We could have it paid off in the next 2 years, so by the age of 37. We have a crazy low fixed rate mortgage for another 4 years so we won't pay it off until then. And even at that point we will have to see what type of mortgage rates are available.
To all those who claim they don't know anyone who has paid off their mortgage in their 30s, how would you know? We don't talk to anyone about our finances in really life. I am happy to disclose on an anonymous forum how much we save, invest etc but I am fully aware how it would come across to tell friends and family, especially those who are struggling.