Should I get Married?

Iv been with my boyfriend for 7 years. And we still aren't married. We both don't make any plans on getting married anytime soon. He purposed on our 1 year anniversary. Over the years I lost my ring. We don't consider our selfs engaged.
We got together at a very young age. I don't know if I even want to get married. It sounds stupid but Im afraid of that commitment. Ik it sounds stupid cuz we have been together for 7 years. 
Anyone eles the same? 
What are your view of marrige?