That's very similar in most government jobs in Europe, I believe. I don't know about the US, but I expect it's similar there as well.
I'm afraid that it works out great for you because others are working more. Individually, that's a good decision for you, but it's not a model you can make society run on, at least not at the same level of output we're currently providing. If everybody had the same circumstances you have, we couldn't afford everything we can afford now, unless there's some explosion in productivity, which is hard to believe for the majority of jobs where it's not about "coming up with the right idea".
I'm afraid that it works out great for you because others are working more. Individually, that's a good decision for you, but it's not a model you can make society run on, at least not at the same level of output we're currently providing. If everybody had the same circumstances you have, we couldn't afford everything we can afford now, unless there's some explosion in productivity, which is hard to believe for the majority of jobs where it's not about "coming up with the right idea".