Is *anyone* planning on retiring without some frivilous expenses or a buffer? Sure, there are probably a few outliers, but my impression is that that is most people's plan. And if an expense is so frivilous that someone would be fine without it for the rest of their retirement, why on earth would it be in the budget at all?
I don't even know how to answer the poll. Flexibility is a massive part of our plan. I'm fine skipping a vacation one or two years (or scaling them waaay back), and deferring the purchase of a new sofa for a year. But I'm not fine never vacationing and never buying a new (or very gently used) sofa. So I can't say those types of expenses are things I'd be happy without forever, and numbers that made it look like it wold be forever would cause us to go back to work in some form.
Also, there is every likelihood that we will receive a very large inheritance that will drastically affect our numbers. But I'm not quite comfortable counting on that. But most likely, it will cut our SWR nearly in half unless something crazy happens. The only way I'm comfortable accounting for it in our plans though is just as another [massive] buffer. Similarly, I have not accounted at all for social security, even though it's nearly impossible for me to imagine getting *nothing*.
Then there are even factors like whether we land in a state that doesn't tax military pensions, and what % of DH's pension ends up being tax free (due to a disability rating). The higher the pension, the lower the withdraw rate.
So what will our SWR be? Likely anywhere from 1.5-5%, depending on the year, the market conditions, and a lot of other factors. And that's a close enough estimate to make me feel quite secure with where we will be. If we are on the top end of that range at some point in time, we might postpone an expense or two until the market recovers, and I might slightly scale up the side hustle I hope to have (because I enjoy it, I'll keep doing it, but it probably takes up 2-4 hours a month, so it's pretty low effort, but also somewhat scalable). If we are at the bottom, we will likely toss a bit extra in the DAF we will have set up.