What do you mostly drink?

Just curious because I thought we should mostly drink water, which doesn't seem to be the case at all among the people I know. The people I know seem to either don't drink water at all or drink very little if they don't consume other beverages. Like my dad only drinks oolong tea. My mom drinks like 2 glasses of water a day. My boyfriend and his brother drink nothing but sweetened drinks (e.g. mostly pop/soda, juice, sweetened tea).