YTA. If you want to have a happy marriage, you will rethink this plan and reevaluate your priorities. Getting married is not just about you and your fiancé. It is about the family you are building ... a family that includes his kids. A compromise is to have someone on babysitting duty to ensure you and your fiancé can be good hosts. My stepdaughter says the only way to make excluding them less offensive is to not invite anyone and just elope. I disagree. I eloped and still made sure my kids were there with us. Ok. I have to wrap this up. We have the stepkids this weekend and my sister just started playing a country version of Gin and Juice. Heavens ... her stepdaughter just started singing along.