I think that you would find that a Lutheran school does not have the same emphasis on religion as a Catholic one. I went to an Anglican School, and I am not Christened at all. Religion was tought, but there was not the same emphasis as a Chatholic school. Partly due to there being no First comunion and confirmation like they have in a Catholic School. How will you feel about your children participating in these? You might choose for them not to participate, but bear in mind that they will be the odd one out as their school friends will do their first communion etc, and this may be upsetting for them.

Anglican school didnt teach us Jesus songs etc. We did religion one a week, but unlike Catholic school, we didnt have to bless Jesus every day or anything like that. I have friends that are Catholic teachers, and part of their morning is when they say good morning, they also make some mention of Jesus.