There where fewer limits and more opportunities in the past
Explanation:
Life was much easier in the past as there where much opportunities from which it was easy to exploit.
In earlier history, there were fewer limits, the achievements of personalities were more extensive than at present and most of the available individual time is used to complete novel tasks was there whereby they become renown.
In our youthful high school / college days, most where being supported, having less to worry about, while still being an able to think for themselves, coupled with the energy of youth and the forgiving nature of the body of youngster and the opportunity to have a second chance as well as to decide on ones future path makes almost everyone yearn for it.
Is this generally a harmless or harmful thing? Why?
It is generally a harmless thing because adults do reminiscent of the past to evaluate how nice it was then, when the going was good. They reverberate on the yester years when life was still in its natural form. They use to say this taken the current wave of aberration into consideration. They believed that things had really gone wired and wish to reflect on the past when life was the way the Almighty Beingness made it.