...you want to wait extra loooong for your fracture to heal
...you want to have a higher risk of surgical complications, like infection or problems healing your wound
...you're okay with developing osteoporosis
...you want to be more likely to develop overuse injuries, like bursitis or tendonitis - and take longer to recover
...you want to have a detrimental effect on your athletic performance
...you want to have more pain after a surgery
Sound attractive? I would guess not for most.