Alain, teaching someone facts in school is extremely different than teaching them your opinion about the afterlife. Of course you can teach someone morality without God/religion being involved, you're looking at this the wrong way. You consistently refer to this "slippery slope" idealism yet you are literally using that mentality to teach your children. I do understand that everyone has their own right to raise their child how they choose, but when you aren't giving your children a choice about their beliefs and are imposing your own onto them I see an issue. That is one of the core issues I have with religion, that the children of religious parents aren't really being given a choice about what they believe. And please, don't tell me that your children DID make a choice, because you heavily influenced that choice through your actions. That's what I could call manipulation and indoctrination.
I slightly elaborated on my religious background, but now I will go into it fully to disclose how and why I feel the way I do. I was born into a Christian family and baptized in a Christian church. My parents raised me to be a man of God and to fear the word of the LORD, and I complied because I was a good boy that wanted to make his parents happy. Somewhere around the age of 7 or 8 I accepted Christ into my heart much to the thrill of my parents and my church community. From that point forward, I would constantly spent my free time volunteering and assisting the church through various outreaches and programs. After I discovered my love for music and developed my talents, I became heavily involved in my church's music programs and would volunteer in the kindergarten and younger kids groups. I really loved what I was doing and constantly worked to grow in my own faith and to inspire others. Over the years I continued to grow in both my faith and my involvement in my church. After my family moved to Spokane was when I really became heavily involved in my church volunteering. I would constantly volunteer in both of the youth groups (middle and high school) as well as the adult services in both music and A/V.
At around this point I started to step back from my beliefs to see why I believed what I did and how they were positively effecting me. I reached out for counseling to my youth pastor and he essentially told me that it was normal to question some beliefs but in the end God is in control and that I will always find my way back to him. This was about the time I joined the military and went to basic training, and I will tell you that during basic I had a very polarizing view of religion. People used religion to get away from their feelings, to feel as though they belonged in a group, and to get out of work. This was very different for me, as I found that church was almost a sort of refill for my week. So I began to talk to my fellow airmen about their experiences as Christians (or whatever religion they believed) and I found similar idealism: born and raised in church, made early commitment to said church when they were young, volunteered and helped and then began to question. We all talked about it and came to the same conclusion: we only belonged to the religion we are in because we were born into that religion. So I did something unthinkable, I walked away from religion. I stopped going to services and made friends in other places and I felt free. It was a weird feeling, that I was able to make my own choices instead of feeling like I only had to have church friends (this was how I was raised).
While I was in the military I met my wife who was raised in a Roman Catholic home who experienced the same epiphany as myself: once she was able to step back and look at the religion she was raised in she no longer wanted to participate. We have both worked to have a healthy relationship based on love we have for each other. We have found happiness even though we have no religion and frankly we have no intentions of going back.
Onto the discussion of religion liberties and religious freedom: you as an american citizen have a guaranteed right to practice your own religion as you see fit. If this whole debacle was truly about practicing your religion, then other religions should be able to justify the religion freedom argument. What if a Muslim family refused to serve you because of their own personal beliefs?