Whatever the reason may be, we shouldn't be attacking each other, we're all in this together. You might be my shipmate one day, so let's keep it respectful.
More power to you if you don't need to make that weekly phone call. From a psychological standpoint... This can be a totally overwhelming experience for some, and it can be extremely nerve wracking to the point where a simple phone call to a loved one can alleviate that. Keep in mind that majority demographic of enlistees are fresh out of high school and have probably never been on their own. Not everyone goes to boot with mental fortitude.
But we all do our best, and support all our brothers and sisters along the way.