How do you decide which way to castle?
It seems castling kingside can be dangerous because of white's extra kingside space he often gets in the French Defense. Also most of my pieces are naturally on the queenside making it difficult if they're needed for defense on the kingside. I'm curious about if castling queenside is good or not, since you use your pawns to expand on the queenside its feels like a lack of a pawn cover for your king?
Sometimes I end up not castling at all in the French because of this. I understand that the answer is rather situational but can someone explain the theory on this?