I guess for most people the level of pain is the deciding factor.
I have osteoarthritis in my hips for about 6 years. I had X rays done back then and was told I would need hip replacement surgery in 1 to 5 years time.
However I'm still not in any real pain and could probably carry on like this for a few more years.
The main negative impact is that if I do long walks, say more than an hour, my hips will get sore. I also can't do steep hill walks as I used to before. Likewise I had to stop playing 7-a-side football and golf.
I do have limited movement/flexibility in my left hip in particular so things like cutting my toenails is difficult but that's not a big deal.
I guess it limits my life and limits my ability to participate in certain physical activities which in turn probably has a negative impact on my overall physical health and fitness.
Any thoughts or advice would be appreciated.