All the time? No. Depressingly often, it is to escape a person and relationship they desperately need to be free of.
I know and am related to several people who are divorced. It was not hedonism that drove the proceedings, but exasperation and pain.
EDIT after further consideration: And even if it is - so what? What business of that is yours?
Family policy creates externalities in society. As Lee Kuan Yew said in Singapore: Political_positions_of_Lee_Kuan_Yew (“I am often accused of interfering in the private lives of citizens. Yes, if I did not, had I not done that, we wouldn’t be here today. And I say without the slightest remorse, that we wouldn’t be here, we would not have made economic progress, if we had not intervened on very personal matters–who your neighbour is, how you live, the noise you make, how you spit, or what language you use.”).
That’s coded as an “Asian” view, but until quite recently it was also the “American” view. The prosperous society in which we live, which was already in place by the mid-20th century, is the product of a mindset where it was taken for granted that state governments have plenary authority to regulate the “health, safety, welfare, and morals” of the people.