At times, when faced with change, some people take the attitude "if you can't beat them join them", so they get on whatever bus comes along. Others are tempted to throw their hands up and quit. Then there are those who suggest they have done their duty, and therefore it's time for the younger ones to take the helm.
Samuel set a noble example in choosing none of the above options. Samuel when dealing with a generation who was rejecting God as their king set the matters before the Lord. He warned the people and when they would not listen he continued to set the matters before the Lord. Even when it became clear to him that God was going to give the people over to their desires and when it became clear that he himself would be cast into obscurity and become of no reputation, he did not compromise; he did not hide what he believed to be truth, he continued to be a man of influence, he continued to pray & represent the people before God, and he established a school of prophets to ensure the truth would be preserved so that future leadership would have wise and mature counselors. Alexander Whyte puts it well when he says Samuel's experience and wisdom were needed in Saul's day an Samuel (as Saul's counselor) was full of new and still more fruitful ideas and intentions for Israel.
I believe this speaks volumes about how Christians today should look upon our service and our relationship with changing generations. Who knows what God has in store for the future? We do know that God takes seasons to train up and ripen his servants for the times of service (for Samuel, it was over twenty years). At the same time, we know God calls his people to speak truth and call men to repentance and to the worship of God only whenever hearts are found to have gone astray. Let us, like Samuel, not let God's Word drop to the ground, be active in keeping the temple clean, willing to endure arduous service, faithul in prayer, active in service, and always using our influence for good.