Because young people are very busy, busy working, busy life, busy growing up, busy lovely. But the elderly is very easy, there is no work to be busy can also have a salary. For example, on top of the bus, looking at those who are full of tired people are actually young people, and those who are full of vigor are older people. Now is this law you do not believe that also can not.
Because life is difficult, young people have to go for life, every day in the exhaustion, this tired you have no way to say and others. Because they understand the kind of tired, is in the factory inside the stars, early morning and late at night tired to physical exhaustion of the kind. But now young people's tired is a state, because of the past not much nostalgia, not much pursuit of the present, and do not know where the future of a kind of exhaustion.
And the elderly time is really too much, get up in the morning to buy food is them, the evening in the square square dancing is also them, back in the bus to ask for a seat is also them. A hard solid can not, but also asked those tired young people to give up their seats.