They're absolutely doing this as a hedge against litigation, and given the trillion dollar lawsuits flying around, it's hard for me to blame them. Regulation by litigation rather than law creates ambiguous legal precedents that make it much harder to do business safely. That's why the most economically successful countries in the world tend to have the strongest rule of law.
The actual root cause of this is our culture moving away from the idea that individuals and families should be free to make these sorts of decisions, and instead believing that heavy-handed authoritarian governments should dictate those choices to us instead.