IS THIS COUNTRY FOR OLD PEOPLE?

(photo credits: scrapetv)

I read recently in a Portuguese newspaper that according to a poll, Portuguese young people pointed to 51 years as the age when you're "old".
It also said that this number is much less than in other European country.
Such a surprising perception of when you become old made me wonder.
Puzzling, to say the least.
After much thought I came to the conclusion that maybe the parents are accountable for this extraordinary idea. And what do I mean with this? It may well be that after listening to parents, uncles, aunts etc etc complaining that retirement takes too long to come, young people decided that after 50 what you want most is to go home and not work anymore.
This is an issue in this country. Most people don't like what they do and keep complaining about it. And why is it?
I wish I knew. Poor work ethics? Demotivation? Poor bosses? Poor edicational choices? Lack of professional choices?