I try not to be......my wife/kids/team at work might say otherwise
Absolutely this.....I'm still London-based but work from home 2 days a week (my team is scattered far and wide so it doesn't really matter to them where I am) - can't tell you how much difference that makes to quality of life...
Or.............your kids are (almost) grown up, mortgage paid off, reached a stage where you've long since realised whilst work is important, it's not life and death so you don't get stressed about it any more and enjoy it more as a result, have a decent work/life balance, have enough time to...