I sing (badly) in the car and if, so inclined, when I am at home. What the heck, no one can hear me in either place. Sometimes we sit in the bar and sing very low with the tunes on the jukebox.
__________________
Stop trying to be what you see. Be what you ought to be.
Anywhere not in public. In fact, was listening to Cher's farewell concert in the shower this morning siging to "I still have'nt found what I have been looking for." Sing in the car too. But--be very cautious in the volume--my neighbors said they have heard me from time to time.