Dehydrated Everyday life and customs

I'd say I'm often very dehydrated, but I'll try to drink a lot more water in summer holidays, I found out a average adult should drink about 2L of water daily. Do you drink enough water? (Just want to find out how many people are dehydrated lol)

I saw mostly women getting dehydrated in my personal life, so I wonder if it's more a woman's problem or not...

On my part, I'm rarely dehydrated if I have access to water. I drink regularly just as an habit, even when I am not especially thirsty and adapt to my activity/temperature.
I also tend to start my day with half a liter of hot chocolate for breakfast, so I start with a good capital I guess.