The word is so widely used and so generalised. ‘oh c’mon smile’ ironic. Smiling is something which can be considered easy when in actual fact i believe its really quite difficult and tiring for a lot of people. Not everybody in everyday of life can wear a smile which is natural many are a mask and a barrier so they don’t have to explain their problems to the people around them. In my opinion its an easy way out if you just want to get past the day doing your own thing without everyone around you hovering and peering asking constantly if you’re okay. Yes they care that isn’t the issue.
Remember there can be more behind a smile than what meets the eye.