The rabbit hole of an endless cyclical argument opens up...
The point is in the 70s and 80s got wasted the night before games, went to strip clubs, did drugs etc. These days we have tedious fitness fanatics with strict diet regimes and safe and healthy lifestyles. Ie compare the autobiographies of Mick Quinn and Tony Adams with the boring **** that will be Harry Kane's book.
If these 70s and 80s players were playing now they wouldn't have that debauched lifestyle and would be introduced to the fitness regimes, diets and lifestyle regulations of the modern game as soon as they started, and become modern athletes as opposed to the type of athletes they were back in the day. Hence Bobby Charlton, Kevin Keegan, George Best etc would still be top players today were they in today's generation.