Gynecologist visits/etc.

So what are your opinions on seeing a Gynecologist? Do you think it's really necessary; especially for someone who isn't/never will be pregnant? I understand the health of getting check ups and to make sure you don't have diseases. 
​I'm 21 and have never seen a Gynecologist, I don't plan on ever seeing one. 
​Just wanted to start a rousing topic and gauge everyone's opinion on the matter.