Actually, if you are over age 60 (as you say you are), then the studies I've seen actually found an INVERSE relationship between LDL-C and mortality. In other words, if you are over 60 you are likely to live longer if your LDL-C is relatively high, than if it is lower.
Here is one such study, and also the conclusions from the study:
https://bmjopen.bmj.com/content/6/6/e010401
"Conclusions High LDL-C is inversely associated with mortality in most people over 60 years. This finding is inconsistent with the cholesterol hypothesis (ie, that cholesterol, particularly LDL-C, is inherently atherogenic). Since elderly people with high LDL-C live as long or longer than those with low LDL-C, our analysis provides reason to question the validity of the cholesterol hypothesis. Moreover, our study provides the rationale for a re-evaluation of guidelines recommending pharmacological reduction of LDL-C in the elderly as a component of cardiovascular disease prevention strategies."
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Doctors are sometimes misinformed. My guess is that sometimes they just believe what the drug reps are telling them (about drugs like statins), rather than doing their own independent research to find out what the latest studies have found. That is why I will never take any drug prescribed to me until I do my own research first.