It's no great surprise. There's been talk of a loooming pilot shortage since I trained for my Commercial and CFI in 1988. Average age of pilots at my big freight carrier is about 55 y/o ,like myself. AOPA has been struggling to get young people interested in aviation for many years. High cost of training, low pay until you make it to a major airline or good corporate job and overall lack of interest in aviation by young people s finally starting to bite. I'm retiring at 60 y/o instead of allowable 65 y/o . 65 y/o retirement will probably go to  67 or higher soon.  UAV's will probably be a solution in 30 plus years. 
I'm going fishing and hunting back in Montana ,Wyoming and New Mexico.
Adios ,to working for the man!