If you were good at chess, you would not be saying that. Remember it. Some people spend time, some not, some have talent, some no. I have played chess for three years sometimes, and I never dedicated time to study it, to forums, to debate what opening or bla blab la choose, I just played for fun and to waste time, and I got indirectly better. I will not be a gm, but I give a *** , I just care about me having fun, and if in the way I improve, that is cool, nothing else.
Chess is a huge waste of time, here's why.

You've literally just can't take that you aren't that good, so you call it a waste of time. If you spent time on it, you would be good, and have fun.
There's approximately 605 million people playing Chess according to Google, and out of these 605 million there are a select few who are widely known in the Chess community (NOT anywhere else as in common knowledge), these people spend thousands of hours memorizing patterns, getting advice from their coach, playing games, et cetera, et cetera, and they become very strong players because of it, but these players start really, really young, around 6 years old, and dedicate stupid amounts of time into Chess, well into their adult life. These people can then in their adult life or later life live off of playing Chess by winning tournaments. But would you sacrifice thousands upon thousands of hours to play a board game if you knew you had 10 years to live? Hell no.
But we're ignoring millions of other people, what about these people? Some are young, some are old, some have played it for a few months, some have played it since they could read and write. And fact is, some people who have played it since they could read and write still haven't reached any sort of fame or huge status and therefore haven't earned much from Chess at all. A wasteful time-for-money tradeoff. The young people on the other hand usually say this is just a hobby, and it might be, but it's also a crazy stupid hobby if you think in terms of time.
If you like Chess, love it and obsess over it, you'll probably call me bad and then continue playing for a very long time. But Chess only gets worse and worse to play the higher level you play, needing more preparation, analysis and spot on moves to win, and if you find this fun, good! Just don't do it to the point where you're uncomfortable or feel you could be doing something better with your time. The sunk-cost fallacy also comes into play if you've played Chess for a long time, not wanting to have your time over such a long time wasted, and in return wasting more time. Notice this, be a little self-aware, and you'll see what I mean.
Cya.
batuteWould you sacrifice thousands of hours to play soccer never being in the top 100 teams ?
Maybe depends how much you enjoy it it's the same thing lets not pretend people don't put just as much work into other hobbies

But would you sacrifice thousands upon thousands of hours to play a board game if you knew you had 10 years to live? Hell no.
If that board game brought me joy, in those final ten years of my life? Absolutely.
Next thread!

You say 'if you only had 10 years to live', but Hikaru 37 with a net worth of 50 Million (granted, though only a handful is from actual chess winnings, the rest is from chess-related stuff). Not all of us will become GMs. Heck, a lot of us won't hit 1000 rating. But we still enjoy playing as a hobby, a way to pass time, maybe a way to sharpen our brain. So to make a bold statement such as the one in the title would imply that you, along with everyone else, are playing chess simply to gain attention.

Having zex with beautiful women is a huge waste of time here is why....
You could dedicate that time to improve your chess.
this thread is a waste of time.