Grrr!! runners are angry people!!
Read nearly any of the discussions on this site and there always seems to be an underlying anger in some of the posts!
One would imagine that running would have chilled people out but hey ho, perhaps not!!
Back to the point, the best runner in my local area is 39yrs old and he wins just about every 10k event anywhere within a 20 odd mile radius of where I live. He holds the record in my home town 10k and it's about 33mins and some change. I'm almost a decade younger and I might never get anywhere near that level by the time I'm 39 or ever. If I ever break 40mins it would be unbelievable! Age is a factor, no doubt about that, but there are plenty of older runners that could thrash the youngsters.