Lucky you living without a mobile phone =p
Here many or almost everyone has a phone too even if it's ancient model. I have a mobile phone but i could live without it as well.
I don't think it's necessary to have one if you can live without it. It changed lot of the society to worse. More hectic, stress and zombies everywhere. If it's a bad job change it otherwise if it's not so bad and you can live with the money, why not?
Money is not all. Health > money in the first place. All the money doesn't do anything if you only torture yourself. Everyone has their own reason or priorities.