That is true, Lysa.
Also, men usually duplicate what they are and what they know. If they are "church-goers" they will create church-goers. If they are working for their salvation, they will create works oriented disciples instead of disciples doing works led by the Spirit. If they teach one thing and do another or value knowledge over love, their "offspring" will look like them, and usually worse as Jesus indicated (Matt 23:15). These "disciples" will hopefully come to a place in their life where they burn out (which is good) and then fall upon the mercy of God and discover His rest and true liberty in Christ. Legalistic, performance oriented, Judaizing elements have always dogged the Church of Jesus Christ, and has no appeal to a young or old person who has been genuinely regenerated. It is a "voice" they do not recognize and their spirit is repelled by the legalistic spirit. This is why some leave "church". Of course, there is not one answer, and we can't assume everyone is not born-again. There are many born-again people in religious institutions living lives of quiet desperation, going through the paces of religious performance, wondering, "Is this what being a Christian is all about"?
Gal 6:13 For neither they themselves who are circumcised keep the law; but desire to have you circumcised, that they may glory in your flesh.
I know this verse has to do with Judaizers, but it can be applied to anyone who adds to the word and the gospel of grace. Many "ministers" advocate certain "performances" but demonstrate that they are unable to perform them. Young people see the insincere pretensions of hypocrisy. Notice, how Barnabas was also carried away by personalities and false teaching.
Gal 2:13 And the other Jews dissembled likewise with him; insomuch that Barnabas also was carried away with their dissimulation.
Galatians is actually a very good book to introduce to new Christians.
Man does not have it in himself to produce fruit or divine character as demanded by the "Judaizer" or the "Christianizer". So, religion settles for something less, rules and regulations that they espouse. And when people are observing, they make token efforts to perform.
Michael Pearl once said, "More is caught than taught", in reference to raising children. Same concept can be applied to anyone who is learning from a "teacher". You can teach them until you are blue in the face, but the real teaching, is your actions, conduct and behavior and this will always be picked up and noticed, by your wife, your children, your disciples.
If you create a religious system, that compromises behavior, don't be surprised when true believers or even those hungry for truth, see the hypocrisy and want to leave. This is partly, why many are leaving.
Paul, did not glory in any man. He only gloried in the cross of Christ. Today, is not much different than the days of Paul. Men 'desire to make a good showing in the flesh" (6:12) and have "bragging rights" over you. Just like the Judaizers, they have self-serving motivations of proud self-exaltation deftly concealed under a thin veneer of "spirituality".
Throughout the history of mankind, religion focuses on the outward, numbering their converts, tallying up statistics, identifying themselves with a segregated group and persuading new converts to CONFORM to their ways. In the religious realm, people have always been used as pawns and taken advantage of that they may eventually become trophies in the process.
Galatians should surely be taught to every new Christian, but will the religious system teach them to stay away from those who uses forceful, manipulative methods to "compel them to be "circumcised" (persuade them to adhere to their church's laws over and above the Gospel of Grace)? Will they be taught to stay away from those who use the motivation of fear to keep them from being persecuted for the cross of Christ? They have no consistency! "They do not keep the law, themselves" and they teach them by example to be hypocritical. This has got to steal a person's joy and peace and severely wear on them as they begin to question their walk with God. To maintain their "sanity", they end up leaving the "sweat factory" of religion. They may not know where they are going, but they just know they need to leave.