My plan has been at 60, so I've got 9-10 more years. I have a target for my 401k savings, which I'm 60% of the way to it, plus non-401k savings. The thing we didn't plan for, and may very well extend all of this, is my father-in-law with dementia and now in long-term care. His savings and proceeds from selling his home will run out in about 5 years. After that, it'll be up to his 3 kids to decide to all contribute monthly, or someone take him in, and everyone chip in for home health care. Either way, it's looking like at least 1k/month will be needed for this.
I'm not sure I'll never work again, but it won't because I'll have to; it'll be because I want to.