I am not a physician but if I had been a traditional med school graduate, I would have graduated 40 years ago. As it is, I've been working adjacent to physicians for even longer than that and can speak a bit to how medicine has changed over 4 decades.
There were no RVUs (relative value units) as a measure of productivity, no administrators waving the latest Press-Ganey patient satisfaction surveys that seem to turn measures of quality of medical care into yelp reviews on the quality of the sandwiches served, and for better for worse, most physicians were in private practice and essentially small business owners unlike today when many medical practices have been purchased by private equity firms.
Doctors can feel pressure that they didn't feel in times past. Some have seen their incomes stagnate, some feel judged for things in their clinical setting over which they have no control. It would be easy for someone toward the end of a career say, "this isn't what I signed up for".
We can't predict what the future will hold; a physician who graduated in 1957 told me that his father-in-law, a physician a generation ahead of him, was horrified at the passage of Medicare and sure that medicine was going down the drain. Instead, the 1960s-70s were the golden age for a specialist who did a lot of procedures as that doc did.
If you are doing this because you like using scientific principles to help people who are experiencing physical, mental and emotional difficulties and helping others to prevent health problems or to prevent them from getting worse, then it is likely that you'll be able to continue to do that for the duration of your work life. If you are doing this for respect, or the monetary rewards, the respect and reimbursement society affords doctors these days may never be enough.