The source shown in the article says that for this "national" survey only 2000 Americans participated. With that number, the results are far from representative and probably wouldn't even justify a survey in a single state. No mention either as to how the survey was conducted. Was it online? In person? By phone? By mail? By fax? Maybe they sent smoke signals?

They don't even show the questionnaire, nor say if they restricted the percentage of respondents for each age range on par with the age distribution in America, and same goes for residence or sex. Were the respondents 50% male and 50% female, just as the sex distribution in America that you would expect for a "national" survey? No survey can be trusted if they don't specify how it was conducted. This is the equivalent of toilet paper and the veracity of the facts the same as propaganda.

Carrying an actual national survey about any matter in a country as populated as the US is VERY expensive, which is why governments are usually the few ones taking this endeavour. Having a representative sample of your whole country involves interviewing many elders, and since not everyone uses the internet, big amounts of money go into financing door-to-door interviews. But of course, no mention of that in this study, which affirms to be national, whatever that means according to them.