Certainly not everyone, and I realize I come off as a jackass saying that. I certainly would never say someone was wrong to go, or say their money could be better spent. But just like any training, withing a year or so, people forget. I absolutely cannot imagine that everyone who goes to one of these classes it a cop, security guard, military empolyed/contractor, competitive shooter. The simple reality is that the hi end classes attract people with hi end wages, and that rarely translates to dirty dangerous jobs. All skills that aren't practiced are lost in enough time. After the skill is lost, what do you have but memories and bragging rights? But I am speaking to the OP question of the necessity of attending class as presented by an increasing number of internet personalities, and not the value of the classes themselves. Apologies for the poor humor. I suppose being in line at the gun counter and waiting 20 minutes so the clerk can listen to JoeBob (not his real name, thats a state secret) prattle about his time in "the Nam/Sandbox", and quarterly SWAT/offsite clandestine training burned me.
You'll also have the hat!