I know why you are saying this, however this was something that was talked about here quite a few times over the past months.
Many people simply don't like a tight watch and have always worn watches lose. Not lose enough to spin around, but enough so they can move freely on your wrist.
More so I suspect in hot environments when you don't want to feel things sticking to to, lose clothing, lose watch etc etc.
This is a issue/flaw with any smartwatch that needs to touch the skin to do body monitoring, and, for the Apple watch an even bigger, dare I say HUGE flaw/issue for many, as even if you don't care about the body monitoring, and many won't after the novelty has worn off, but the issue of re-entering passwords.
This could be a make or break issue for some, unless Apple changes this aspect.