I would treat a doc being a paid rep for a drug or medical device as a possible sign that I want to seek another opinion from a specialist unaffiliated with any drug company.

Like you I am personally wary of taking a medication that doesn't have a long track record, especially if it must be taken long term.

Treating osteoporosis is not an emergency situation, so at 60 and in good health, you have time to do some research and make an informed decision. I'm not on my computer now so I can't give you specific links, but if you Google Evenity reviews and read what you can from FDA, NIH or medical journals you can get some idea of demonstrated effectiveness and side effects, as well as how long the trials and followup went on.
Let us know what you learn.
Sue