your reason  :
Work offline 100%
* No fees.
* Accepted for Food Shopping & Micropayments
* 0 confermations time
* 0 exchange risks
* anyone is able to understanding of the value of payment
All is correct but bitcoin have very high price , 1 bitcoin can convert much money . Now 1 bitcoin about  5600$
And bitcoin had high price , bitcoin must to had fees .
Now some story accepted bitcoin as payment .
those reasons, all are the thoughts of each person