strength training 3x a week will with no other exercise will leave the average person with extremely poor cardiovascular fitness. if you lack the strength to carry out household tasks you would be better off with basic bodyweight exercises. the average western person is sedentary and does not exercise enough, so it makes little sense to recommend 3 hours a week of training that consists of mainly of recovering between sets.
there is also no evidence for the preventative benefits of heavy lifting. for the average person who starts lifting to feel and look better, starting strength makes no sense: it is sub optimal for increasing mass, is hard and not that enjoyable compared to less intense weightlifting routines, increases the length of workouts, interferes with training for other sports, is incompatible with serious participation in sports (outside of powerlifting), requires rapid and unhealthy weight gain for progression for many trainees...
even if you don't agree with all my points, at least ask yourself if it makes sense to recommend a highly specific sports training routine to everyone looking for basic fitness advice.
there is also no evidence for the preventative benefits of heavy lifting. for the average person who starts lifting to feel and look better, starting strength makes no sense: it is sub optimal for increasing mass, is hard and not that enjoyable compared to less intense weightlifting routines, increases the length of workouts, interferes with training for other sports, is incompatible with serious participation in sports (outside of powerlifting), requires rapid and unhealthy weight gain for progression for many trainees...
even if you don't agree with all my points, at least ask yourself if it makes sense to recommend a highly specific sports training routine to everyone looking for basic fitness advice.