I agree to a point but the best thing to do is look at what the experts say.
There is a very good 5 min video on BMS website with Prof John Stevenson who is a metabolic consultant and expert in osteoporosis. In the video he says the exercise has little effect.
https://www.johnstevenson.org.uk/osteoporosis.html
Treatment
Diet and exercise alone are not able to prevent or treat osteoporosis. Most treatments for osteoporosis are with drugs that reduce bone breakdown, and hence prevent bone loss. When such drugs are first given, there is often a gain in bone mass, because the reduction in bone breakdown exceeds that in formation, and thus a “positive” bone balance exists for some months or even years. There are now some drugs which primarily increase bone formation rather than just reducing breakdown.
Hormone replacement therapy (HRT) prevents bone breakdown, and may also increase bone formation to some extent. It is very effective in preventing the development of osteoporosis and fractures in postmenopausal women. It is usually given to those identified as being at increased risk, and is as safe and effective as any other currently available treatment (see Menopause and HRT section). It can also be used for the treatment of osteoporosis in women who already have the disease. It does not have the same long term adverse effects as the bisphosphonates and other drugs (see below).
The TV prog about LNewson raised the point that women's health is neglected.
A lot of osteo etc could be caught early if women were screened for their bone density like they are for cervical cancer. It kills many more women and disables others for the last 10-20 years of their lives (my late MIL was one.)
I'm not pushing hrt but saying that it should be considered as part of the picture of long term health and women make up their own minds. Having a scan after a fall and break is too late.
For you, ideally, you should try to get a DEXA scan at 60 and see what's going on.