My advice is to keep your parents moving for as long as possible.

Motivation and exercise is what keeps people alive and happy. I once knew a 92 year old who benched 140lbs and who’s grip was a vice. He worked out every day for ~2 hrs. Was one of the most impressive things I’ve seen.

All that said, perhaps ask them what they want? For instance, their motivation might not be meals or cleaning. Getting a maid or food service can lighten their load. Similarly, consider a cleaner for yourself! And give yourself more time to spend with them and your young family.

At the end of the day, they’re their individuals. I suspect they’ll have some thoughts. It’s honestly hard to watch sometimes, but all you can do is try to spend time and enjoy each other’s company.