I hate bootcamps. They are reinforcing the notion that exercise is "work", pain, and that it is something that is difficult to do, therefore you need someone to force it upon you. I don't like smashing my thumb with a hammer, but I don't pay someone to yell at me and force me to do it. Mentally its the same thing. It's a bit of a drastic example, lol, but that is something I would despise doing and would resist doing at all costs. Some people view exercise as a hammer lined up over their thumb. Enjoying the activity and having a genuine interest in something is what makes anything sustainable.
The strength trainee says "Why sacrifice intensity when I can sacrifice volume"
The bodybuilder says "Why sacrifice intensity when I can sacrifice form"
"We are not sport, when there is a sport issue, we are not so good. The boxer is much better than us at boxing. But he will have to protect his balls if he wants to punch us."