I "retired" in my mid-20s for about 3 years. I only went back to work when I ran out of money.
Describing complete freedom as "dull" is an insane concept to me. You can work out, read, watch TV, go to coffee shops, cook, or even just sit around all day with no commitments.
I agree. I am 46, and my wife was joking a few years ago that we're living a retired's life. (I'm working from home, but at a rate that's about ten times the local average, so it's pretty much whenever I feel like it.)
Not everyone is like us. I'm a relatively successful software engineer currently and I still think back with fond memories to when I was tech support sitting there answering 30 minutes of calls per 8 hour shift. For some people that's torture.
It should be more than a "hope." If you really retire (and really plan to never work again), you should have some reasonable confidence that you will never run out of money. Having 25x to 30x current expenses saved and invested is a good starting point.
Describing complete freedom as "dull" is an insane concept to me. You can work out, read, watch TV, go to coffee shops, cook, or even just sit around all day with no commitments.