Experience can't be judged by the number of years because you can have lots of years of experience at a poor level of performance. If you want to look at experience be sure that performance is factored in. Two years of successful experience is not the same as 2 years with weak or poor performance. Haven't done doesn't mean can't do. A lack of experience might mean a lack of opportunity rather than a lack of skill or interest.
Experience has a shelf life.
In hi-tech, experience that is over 2 years old may be of no value because the information, tools, and customer expectations change so fast. Listing something on a resume is not experience. People stretch the truth in resumes. Where you get the experience matters. Experience at K-Mart is not usually equivalent with experience at Saks Fifth Avenue.