More specifically, how do you do so without making them feel like other parents are "bad"? My SIL and BIL in particular have made a lot of decisions that are VERY different from what DH and I will do. It's just been on my mind a bit, and it occurred to me to wonder how we'll handle it when our LO starts asking why our niece is allowed different things than them. Like her ears were pierced when she was a baby, but we absolutely won't do that, and won't allow any piercings until they're old enough to take proper care of them. She also does pageants, which we're not okay with, and I could see a daughter seeing their cousin's awesome trophies (seriously, one is six feet tall) and want to get some too. If LO starts seriously questioning our reasons for why our niece is allowed and they're not, how do we explain it without making BIL and SIL seem bad/wrong?

Also, if LO turns out to be a boy, we won't circumcise and I would guess that the question of "why am I different from Daddy" is inevitable. How do you explain that without demonizing his grandparents? Especially if it comes up when he's older (locker room perhaps?) and you need to explain a bit more detail on the reasons why you chose not to have it done?