The old dream of being young again, and of advantages that befit the young. As George Bernard Shaw once famously quipped "Youth is wasted on the young."
However, the young dream themselves of being stronger, wiser, and ultimately older, for are they not perpetually in the dawn of their life until time has passed and given them voice? Without voice their opinion is not heard nor appreciated for what it is.
If this is true, then the old dream themselves of being dreamers of old age. To be dreaming of their age, but not to be living it.
May you live in interesting times.