That's not true. Four of year olds who played on the weekend won't be on the list next month.
Roughead - retired
Puopolo - likely to retire
Smith - will be traded
Mohr - retire
Schoenmakers - retire
Burgoyne - likely to retire or finish elsewhere
That leaves only McEvoy, Henderson, Frawley and Stratton as the 30 year olds.
Same could apply to Carlton too though, regardless the over 30 thing is a bit of a myth
Much like the Duck (who we know has a thing for glassing) has been foretelling Hawthorn's demise since he stated Mitchell wasn't Carlton best 22 (when Hawthorn belted the blooze by the infamous 138 point margin in 2015) and Jono Brown who himself has stated ad nauseam that Hawthorn has benefited by Free Agency...