I think most things have their time and their place, same for ‘agree to disagree’. People, even couples, are allowed to have different opinions. As long as your core values are aligned. Then in my opinion, it’s ok. However if it’s something that’s very important to you, it needs to be discussed, as then potentially it’s a more serious issue. One can’t live happily when going against one’s own values and it’s really hard being with someone who disagrees with what’s super important for you.