Perhaps, the letter "S" was too overworked among the set of consonants.
My belief is mostly based on my own baseless logic and one fact.
- Most of my friends' names begin with the letter "S" or have the letter "S". For instance, my friends include Sushmita, Sudakshina, Sandeep, Sagarika, Sanjeev, Sakshi, Salma, Saru... the list is long and as I would have said in a speech had I received an award, "I am sorry if I missed anyone's name here!"
- The plurals! Poor "S" got its ass kicked like how! Thank God for Men, Women and Children who saved some usage of the letter's plural overwork!