Imagine that VR develops over the next few centuries. Millions of people engaged everyday, for 10-12-15 hours. At that point, what’s the difference between being on a ship or being on Earth?
But I don’t think it’s too far fetched. Imagine a VR system that doesn’t require wearing a helmet and can be displayed in physical space. And/or a Matrix-style direct jack into the brain. Any environment you can think of, easily accessible. Doesn’t seem that bad to me.
Beyond that, A lot of people already spend 10+ hours staring at screens here on Earth...
And don’t forget that you’d be in space with tons of other colonists too.