This is already the case for e.g. gambling ads in certain countries. Recently I saw the first website that was basically begging the user to "please be honest"

This is already the case for e.g. gambling ads in certain countries. Recently I saw the first website that was basically begging the user to "please be honest" on the age popup, indicating a good number of people have caught on to just clicking "under 21". Of course I still clicked "under 21".