And this is the reason I give no credence at all to the hundreds of "surveys" that appear in social media, resulting in all kinds of astounding statistics. Many of them are filled in by people who were attracted to them because their eye was caught by a minority subject which happens to apply to them, while the majority of readers skip past because the questions will not be relevant to their experience and they really CBA to waste time saying so.
There is also the fact that estranged grandparents are full of anger and pain, and ready to express that, while non-estranged grandparents are just getting on with being happy.
The result is a statistic which is headlined as "X% of our readers do this or that" instead of the more accurate "X% of those who responded to the voluntary survey do this or that."
PS - For those who don't like acronyms/abbreviations, CBA is short for Can't Be Arsed.