Learning to sing can be life changing.
Participating in musical theater, for instance, helped me evolve from an awkward introvert into a more confident introvert. But there are a lot more unexpected benefits to singing, such as:
It doesn’t cost much
If you want to learn any other instrument, you have to buy the instrument, the accessories, musical scores, etc. But singing costs nothing.
Well, if you want to do it well and hire a professional teacher, then yes, it will cost something (it’s worth it), but it’s far cheaper to sing than it is to pick up any other instrument.
It’s great for your mental health
There is something cathartic about expressing your feelings through art. Particularly music. Writing or singing along with sad songs can be surprisingly comforting.
Not to mention, singing loudly or singing high notes is basically screaming, but without hurting yourself or sounding awful.