But rather we must teach the sound doctrine that God has preserved for us in his word. You must hear with meekness. Come to the house of God with modest and tractable dispositions, bring along with you the persuasion that you need frequently to be reminded of your duty. They only, who in good and honest hearts receive the Word, keep it, and bring forth fruit. There seems to be a lot of disagreement as to which foods are good for you and which are bad for you.
Experts seem to be constantly changing their minds.
So it is with Christian teachings - sound doctrine produces healthy Christians. Paul exhorts the older men to set the example. Those of us who have been serving Christ for many decades need to exhibit spiritual maturity. If there is a strong group of older men in the church, it will add stability. I remember a mother of a ten year old who had been going from one contemporary church to the next.