Families are Placed on the Back Burner

What I have learned in the last few weeks is staggaring. I have learned that many adult children have no time for their parents, because of their busy lives. I have learned that many do not even realize how much they have been self absorbed in their career. Their assumption is that we will be understanding of the fact that they are simply busy.
Some hang up phones before conversations end, some book off one hour once a month for lunch with their mothers; with the mom commuting to the child's workplace of-course. Some feel that they must sacrifice a few years of their lives to provide a better living condition for themselves into their adulthood at the expense of their relationships with family.
 Parents are left with the guilt trip of having caused them loss of money, by taking even an hour out of their week to spend time with their grown children. One adult child living in another province will even miss his grandfathers funeral, because the 'mom is NOT sick'. She would fly across the country if her mom was sick.. despite being provided with an offer of a plane ticket to attend the grandfather's funeral.
Everyone seems to be carrying on with their own agenda, and family is placed on the back burner, if on a stove top at all. Texting seems to be the only means of communication, if the elderly parent is savy enough to use this means to communicate, and or has the financial means to pay the expensive phone plans. This generations seems to have been purchased by their employers, and these millenials cannot see that perhaps their parents need them.. no not as friends but as companions and familial ties.
I personally have not guarded my heart in the event of such an act of abandonement/shunning that I feel. My one daughter says that I should have known what was down the road. Can anyone prepare for such a thing, when your entire life was all about your children? Now I must take on a heart of stone and discard my heart of flesh.
Perhaps you are a parent who has not experienced any of this. Perhaps you have been spared of this pain, and your children call you, and visit you. The fallacy that 'quality time' (ie. one hour a month) is going to replace shared experiences and more frequent family gatherings is just that; a fallacy. Many research papers indicate that not only does one need quality time, but also quantity. You can't see your baby toddler for 1quality hour a day, and call it 'well done'. I am afraid of what is coming down the wire for the next generations. Hopefully, I don't have to see it.