My mother was ADAMANT about no religion in school. I hold strong religious beliefs.
I'll probably have to change my name after saying this but is this only Christianity that you're unhappy about?
Religion is still a large part of our lives. No matter what you believe, western civilization was based on it. They're/we're still fighting wars bc of it.
Christianity is losing support but others are still very strong. You can't escape religious influence in the world today even if you're an atheist.
Information is important. My mother read other religions and debated any evangelical who came to her door. They usually left quickly.
Frankly, my opinion is mine. Based on deep reflection and information that i sought on my own.
I taught my children about 7 deadly sins and 10 commandments bc those are basic common good things to live by.
We lived in a very religious area for a time. I told my children what i was taught: "take everything with a grain of salt."
Listen politely and decide for yourself. You may find that keeping your dc from religious studies is similar to parents refusing to give dc sugar or video games; they will want to find out about it more.
Parents have more influence early and less as they grow older. Let them learn now, discuss ....and refute.