I don't think inter religious dating is a good idea at all. It's not that I have something against other religions but the state of mind of the two people involved in the relationship. I'm a Christian. I could never get serious with someone who was a different religion because of my beliefs. If some of you don't know, Christians believe that if you don't accept Jesus into your heart and ask forgiveness for all of your sins, you will go to Hell and suffer for eternity. I tend not to push my religion on people but if I loved someone enough to be with them, the thought of them going to Hell would kill me. I wouldn't be able to NOT try to convert them. It would just cause problems. I know I wouldn't be very fond of someone trying push their religion on me, no matter what they thought, but due to my beliefs I couldn't stand by and do nothing. It's just more trouble than it's worth.
If you can put your beliefs aside, then it may work fine, but then how can you call yourself a member of that religion when you can so easily ignore those beliefs that you say you hold dear?
It's even worse if you have kids. It's already been pointed out, I see, but I'll restate it. If you are religious, you care very much what your children believe. Think of it this way: If you knew your child was going to be hurt, wouldn't you do anything in your power to prevent it? Especially if it were an eternity of suffering?
My cousin is Baptist, her husband is Catholic. They're both Christian religions, I know, but they are very different. They have four children. They take turns each week taking the children to church while the other goes to their own church. Does anyone want to know the result of this? Some majorly confused kids, that's what. The kids ask about the differences in what they hear and get the "Mommy believes this and Daddy believes that" speech that leaves them more confused than they were to begin with. Their oldest daughter doesn't want to hurt anyone's feelings about who she goes with or what she believes but the thing is she doesn't know what to believe. She gets pressure from both sides and both churches. She doesn't know what to do and I have no idea what to tell her other than my own beliefs and to just follow her heart. She's miserable because she's so afraid of making one of them upset with her, even though they have told her she's free to decide.