Devotional Service should start at early age, and not during old age.
A pure devotee cannot forget the Supreme Lord for a moment, and similarly the Supreme Lord cannot forget His pure devotee for a moment. This is the great blessing of the Krishna conscious process of chanting the maha-mantra:
Hare Krishna, Hare Krishna, Krishna Krishna, Hare Hare,
Hare Rama, Hare Rama, Rama Rama, Hare Hare.
One who is attracted by param, the Supreme, is no longer attracted by anything inferior.
Srimad Bhagavatam 3.8.24,
In the darkness of night a snake can find its eatables simply by hearing the frog's very pleasant cry. Similarly, people who are taking all nonsense without Krishna Katha, they are inviting the Yamaraj.