Smile!

Assalmualykum!
Okay i know this is totally random, but..errm how should i say this....why is there a shortage of smiles? In my experience it seems that as people get older, frowns are always stamped on their faces... I think in today’s day and age everyone needs to smile a little bit - like to the old women hobbling up your street or to the passer byes on the bus or tube.... The prophet Muhammad (p.bu.h) has said that "Smiling is a charity" so shouldn't we stick to the sunnah and try to spread the magic of Islam around...?
BTW... Just to clarify.. I'm not saying that everyone is miserable and moody.. Im Just saying BIG SMILES EVERYONE! 🙂 and help spread the Sunnah 😃