How old do आप think are beloved hedgehog is, Sonic the hedgehog?!?!!Cause..what the hell do आप think?(Lol)

Some say In the originL sonic series या just the sonic series he is normally 15, some say in video game series, he is 21, some say in all any या both sonic series he is 21 या 15.
So SON!!
Like I कहा in the सवाल , what the hell do आप think?(Lol)