How many prayers should be done with family?

We used to have one person, my dad, say or do a prayer after we read the Bible from YouTube and follow it with our Bibles. My family is a family of four, including myself, my brother, my mom, and my dad, who read the Bible at home. My mom thought it's a good idea for everyone, including me, to do a prayer after reading the Bible. I think it's stupid because one I'm not a religious person, two I believe that there should be one prayer from one person and not one prayer from four people which makes the Bible reading longer, which I hate, and third I hate the fact that my parents forces me and my brother into religion. Should there be one prayer or more?
How many prayers should be done with family?
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