Well, to be fair, dogs are meant to breed— but we neuter them all the same, and hens are meant to hatch eggs— but we collect and eat them, and then take measures to break a broody from following her natural instincts. If I feel he or my neighbors are unhappy, I’ll certainly rehome him, but if there’s another solution I’d like to explore it. I don't personally find collars to be cruel at all-- I've used them before on rescue roosters while waiting to find them a home, and they seem irritated by collars at worst and, more often, totally unaware of them. This is my opinion though, and I know others feel and do differently when it comes to their flocks.
To be clear, though-- my question was if putting the collar on NOW, before he begins to truly crow, might help him begin to train his muscles differently so his crow isn't as loud or impactful later on. I noticed with those rescue roosters that often they continued to crow quietly for a bit after taking the collar off out of muscle memory, so I'm most curious to know if anyone has tried collaring a younger rooster with this goal in mind.