Does that make bluegrass something you want to take your kids to listen to, that's up to you but don't make children of parents  who care be forced to have them hear it.
You can sort of tell by the comments when and where people were raised and do you think it's right to make everybody be like you.  They had a choice to bring their kids out to hear music and there was a choice to keep the songs reasonable and that sort of sums it up. People talk about prejudice and hate of which neither you are born with , it has to be learned so music is one way to teach it and they are doing a bang up job.