It is true that we live on the Lord's timetable and that there are seasons in our lives, but we are also possessed of our own moral agency and if we choose unwisely, all the Patriarchal Blessings in the world are not going to reward us with the promised blessings if we do not do our part to do the necessary prerequisite work. Even those who blessings are silent about the promise of being involved in family history, postpone doing any family history until "retirement." Again, just as with those with the articulated blessings, they wait until their hands and minds can no longer learn what is necessary to do their family history and seek out their kindred dead. To oppose the work of the Lord, all that is really necessary is to convince good people to do nothing.
Statements like the one made by Elder Neil L. Andersen of the Quorum of the Twelve Apostles are not just directed at the youth. He said, "These are your days. You were born in a time of temples and technology." Quoting from Helaman 13:38:
But behold, your days of probation are past; ye have procrastinated the day of your salvation until it is everlastingly too late, and your destruction is made sure; yea, for ye have sought all the days of your lives for that which ye could not obtain..."Waiting around too long can have serious consequences. How many will forfeit the blessings promised to them because they waited until they were too old and too feeble to do the work?