You have to decide on your quality of life. My brother-in-law was 83 years old when he had both knees replaced 4 months apart. He loved to travel, so having great knees has been a game changer for him. I had tkr on my tight knee in Dec . 2024. I’m happy I made the choice to do the surgery. It’s not an easy recovery. Hard work and motivation will help in your recovery. Having someone with you for the first couple of weeks is essential. I had my husband ! Do the research on pre and post preparation. I don’t think you get enough info from the medical professionals. The internet was my source of info. Best wishes. Be brave!