> They generally don't do it because they genuinely believe it's best for the baby, though they will try to come up with rationalizations to that effect after the fact.
I think this is where you're going wrong. You're putting motivations into other people's heads based on having prejudged them. I certainly did sleep training with my kids because getting them on a regular sleep schedule is good for EVERYONE, not just me. Ever since, we have been extremely consistent about bedtimes, and now we have kids that have no problem going to bed at the appropriate time so they're not exhausted when they have to get up for school in the morning. Yes, it made/makes life easier for me as well, but the root reason to do it is a firm belief that establishing good sleep habits is good for them.
I think this is where you're going wrong. You're putting motivations into other people's heads based on having prejudged them. I certainly did sleep training with my kids because getting them on a regular sleep schedule is good for EVERYONE, not just me. Ever since, we have been extremely consistent about bedtimes, and now we have kids that have no problem going to bed at the appropriate time so they're not exhausted when they have to get up for school in the morning. Yes, it made/makes life easier for me as well, but the root reason to do it is a firm belief that establishing good sleep habits is good for them.