We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
The older you get, the more important strength-training becomes to maintain full functionality. And while it may be most important for women (to deter osteoporosis), all men want to be stronger.
Our recommendation is that 1/3 of fitness training/conditioning (ie about 2 hrs/wk) be basic weight-training with gradually-increasing weights as tolerated. (Our simple plan is 2 hrs mixed cardio, 2 hrs calisthenics, 2 hrs weights, even though there is plenty of overlap to make it all synergistic.)
Resistance training is a temporary salve for aging. If you are in your 30's, 40's, and possibly 50's, it buys you time until the SENS therapies become available and widespread. Remember, everything is a stepping stone to the next step down the line, with regards to defeating aging.