I've been with my boyfriend for just over a year and we recently introduced the kids (would have been a little easier I think if not for covid). We've been out for walks on a number of occasions now and I'm a little unsure on how to take his son. Don't get me wrong, my DC are no angels but they are polite and generally well behaved most of the time. Although his son was friendly, I was surprised to see there was a complete lack of manners which was not corrected once by my partner. He's moaned constantly every time we've been out. He also seems to be a little awkward - an example was we had been walking for maybe 10 minutes and we chose to go down one path but his son didn't want to go that way so he simply stood still, arms crossed, sulking, refusing to go the way we all wanted to. He is 9! After a 5 minute stand off we had to go the way his son wanted to or I think we'd have been there all day. There are other examples but I hope I've got the picture across.
I don't want people to think this is a post to bash his son, as it's not at all. As I said earlier in the post, he was fairly friendly and we've managed to have a few nice conversations (albeit about computer games!). I guess I'm not asking an actual question as such, I'm just a bit concerned by the behaviour I've seen so far and wondering whether this could potentially cause an issue in the future?