How do I polity let my future SIL know that her kids are not welcome at the reception? They are part of the wedding party and will be at the ceremony and part of cocktail hour but they are under 5 and I personally do not want kids at the reception. I have mentioned this numerous times as she has asked us to switch up our wedding timing so the kids could be included and if it was a kid friendly wedding - everytime i have said no. My FH agrees with me but doesnt want to start WW3. HELP!