Why king side castle is better?

Why king side castle is better? It is almost always faster to castle kingside because only two pieces need to be moved out of the way, and those two pieces have very natural squares ( Nf3 , Bb5/c4/e2 ). The kingside pawns are usually left on their starting squares so the king is usually safer on the kingside than it would be on the queenside.

It is almost always faster to castle kingside because only two pieces need to be moved out of the way, and those two pieces have very natural squares ( Nf3 , Bb5/c4/e2 ). The kingside pawns are usually left on their starting squares so the king is usually safer on the kingside than it would be on the queenside.