If it's stained wood, I'd keep it. I really like dark wood, though. <3

I say, live with it for at least a year, and evaluate how you feel about it then.

I am in the live with it no less than 6 months, and better yet a year camp. You may come to absolutely love it. Seriously, unless you really need to change something, please do not do permanent changes until at least a yr. What you are not sure if you like now, may just become your favorite thing, in a yr. It seems to fit your house quite well. Cute kids.

Agree that waiting is best idea. It may be there’s a happy medium which would be painting out only all the wall trim detail to same as wall color to reduce the business of detail in that first room. You might change out window coverings to wall color at later time too which would lighten things up. So, wait until you’re settled in to make any changes.

It looks odd to me. I would paint it without hesitation.

The dining area might be toned down with a solid floor color. I'd be tempted to replace a number of the vertical wood pieces on the lower half of the dining area wall-too much visual stimulation for my personal taste.