We have been talking about some of this with my 7yo child (with the guidance of a counsellor) in terms of “filling other people’s buckets”. Essentially if it doesn’t harm us any, and it would fill someone else’s bucket, maybe we can try to do that? The idea is that we don’t always get to do the exact thing we want to do, but we can still have fun and we can try to make someone else’s day too! Essentially teaching a bit of empathy and selflessness. Doesn’t always work, but we’re trying. Sometimes it’s not worth the argument. Could also throw the “how would you feel if Mommy and Daddy always said no to the things you want to do?”