<prompt> Human: I see this advice fairly often. This advice usually stems from 401k discussions, where much of my income will come from. I understand that my mortgage will be paid off, I should have some SS and children out of the house, but why would I assume my spending would be lower?During retirement I plan to golf, travel, go out to dinner, etc. Not having to work frees up time for me to spend money. Also, if I ever have to go into long-term care, my spending will increase significantly assuming I am not going to a state facility. When doing retirement planning calculations, I assume my spending will remain unchanged. What are rpfs thoughts?  <response>: Because golfing, traveling, and going out to dinner usually add up to less than things like a mortgage, even if you do it a lot. Additional factors like lack of child expenses food, education, etc can also decrease spending. 