​‎Is it because he is a child? Or is it because he is a boy?

Is there a better way to say this? I hear the use of "or" "and" etc… at the beginning of a sentence is not recommended.

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I feel as if using contractions would make this easier to say, such as "Is it because he's a child? Or is it because he's a boy?" Yes, using "or" "and" at the beginning of the sentence is not recommended, but that is mainly for writing instead of speaking