According to a 2016 study by the League of American Orchestras, "Overall, [symphony] audiences declined by 10.5% between 2010 and 2014...". However, there is overwhelming evidence of a plethora of health benefits to listening to classical music.
I feel confident the majority of people want to feel and be healthy. So the question becomes, why aren't you going to the symphony?
No matter what your excuse is, the health benefits of listening to classical music are numerous and tremendous. Here is an infographic which "says" it all:
If you go to the Take Lessons website, you will find links to further investigate the findings.
In this day and age of soul-searching and health consciousness, don't forget to think about what you are listening to in order to promote personal harmony and health.