Why, for instance, does the minister not make the appeal be for those who are in the audience and feel themselves ready to make a commitment (or close to it) to come forth and sign up, with the deacons, for instruction classes leading to a formal declaration and baptism...but not to being "saved" on the spot by repeating a few words that are not even the candidate's own?
In the last Southern Baptist church I attended if someone responded to an alter call they were taken to another room by a trained (For lack of a better word) counselor. The job of the counselor was to make sure the person understood the basic facts of the gospel message.
When I was in my 20's I was one of those counselors at a Youth Evangelism Weekend. We had training on how to discern a work of the Spirit from emotional/cultural conversion. Obviously, we were fallible young adults but if you ask "why did you come forward?" and the answer is "Because my best friend did" then you know something is off.
We did our best to make sure people who came forward understood the following:
1. That I am a sinner and separated from God
2. Who Christ is and what He has done for us
3. That faith is more than simple belief but a trusting and surrender to the Lordship of Christ
4. That repentance and seeking Godliness is a necessary element and evidence of faith
5. That Baptism is the next step for a new believer
Only if the counselor believed the person truly understood the gospel and the implications would they be asked to say "the sinner's prayer". If the counselor believed the person didn't understand what they were doing they would be referred to a pastor/elder for further counseling.
We also got instructions on what to do if someone came forward and said I'm being abused, or I'm a drug addict or some other heavy issue that we weren't qualified to deal with. I'm thankful I never had anyone tell me anything like that, but I know of others who had to deal with those issues.
At any rate, new believers are often placed in a "New Believers" class after which they would be baptized. . 35 years ago my pastor and I went through
Survival Kit for New Believers together. My Dad was a deacon and my Mom taught Sunday school and I had been to church three times a week since I was born. I didn't learn a thing in the new believers class.
Obviously, my experience is within a particular church in a particular denomination. I share all of this to maybe helps folks not in the tradition to understand that it might not be as shallow and emotion driven as it appears on the surface.