You lose bone density when you age... Not the whole bones. All adults...even Grandma and Grandpa have 206 boned in their bodies...unless Grandpa lost a limb in WWII, then he would have slightly less. ;)
How Many Bones Do Grandparents Have?
What kind of question is that, grandparents are the same as you but old..
Why? They have the same number of bones as you! You are making them out to almost be a different species by asking this question.