I ended up retiring early because my MIL moved in with us. The job market had started to tank in my field, salaries were dropping, job duties increasing. I got laid off and began to look for another job.
To get anywhere near the salary I used to command, I would have to commute. Not far in distance, but easily a 1 hr-90 min slog combo of public trans/freeway rush hour driving.
When MIL moved in we discovered her 'absent-mindedness' was in fact, mild dementia. We weren't comfortable leaving her alone all day; all our neighbors worked, the area is urbanized but very hilly, and she didn't make friends easily.
So I calculated what average salaries nearby would be, after taxes. Subtracting expenses from that, I would be clearing a munificent total [NOT] of $1500/mo, while being gone 11-12 hrs per day.
MIL offered to help pay 1/3 our mortgage and food costs. That was $800-1100 cash, so......it all came out equal.
I stayed home, and Spouse worked another 4 yrs, then took ER. Things were not always easy with MIL, but eventually we moved her to a very fine Asst Lvg facility where she absolutely blossomed. She was a very social person but we're more introverted, which wasn't good for her dementia. At the facility there was lots of cheerful, casual social contact and it worked out much better for her.
Financially my ER was not a problem. We had done a lot of work on financial planning in our early 50's, and Spouse has a good pension with health bennies.
Unlike many here, we are not the LBYM type. We're more the LRUTYM - Live Right Up To Your Means. Spending $$$$ was never a problem for us, LOL!
We're currently investigating senior living facilities for ourselves, with the alternative of simply moving to a condo with an elevator, then renting our home out/selling it. We have LTCi so are covered for a large percentage of eldercare expenses.