I disagree to an extent. When one makes sacrifices for their families and childen, those are done out of love. The little things one does for their family: cooking, working at a full time job in or out of the home, a man working two jobs to support his family-all this is done out of love. These duties may involve a lot of stress but the motivating factor is love.
On the opposite end are selfish behaviors. People who cheat on their partners, who are abusive, who are chronically unemployed, who neglect their children and fall into addictions. These people engage in these habits because there is no love for their family. I might make an exception for an addiction because it is a genetic predisposition in many cases that starts off inadvertently but, if the addict chooses the addiction over his family and refuses to get help, then his decision is due to selfishness not love.
However, there are people who do good things for others, not out of love or lack of love but out of simple duty. I grew up abused by my mother so, while I do not hate her, my feelings toward her are total indifference. We do not keep in contact often. The few times I speak with her, it is out of duty only. I am her only child. If I had other siblings, I'd slough off the duty to them. If she becomes seriously ill, I won't be a caretaker but I will ensure she is placed in a nice facility. These things I would do out of common decency, not out of love.
My father and I were not close when I was a child. Our parents were divorced when I was young and I rarely saw him. We communicate every so often but I do not view him as a father, more as a family acquaintance. Two years ago, he had open heart surgery. I was not the least bit concerned and showed up at the hospital late. Last year, he had double knee replacement and the only reason why I visited him daily at the hospital was because my cousin, who I love dearly, asked that I do so as I was the only family member at the time who could visit him. But these hospital visits were not performed out of love but out of duty only. Sometimes that has to be enough.