Variation in need of explanation

These are a summary of our responses to the second question about each statement in the survey yesterday (Filicietti, 2015):

1. Carlson should have shot Candy's dog.
   7 / 14 (50%) answered: "It's personal taste, neither right nor wrong."
   
2. Candy should have protected his dog better.
   5 / 14 (36%) answered: "It's personal taste, neither right nor wrong."
   
3. It is right for George to shoot Lennie.
   3 / 14 (21%) answered: "It's personal taste, neither right nor wrong."
   
4. Steinbeck should not have presented George killing Lennie as right.
   1 / 14 (7%) answered: "It's personal taste, neither right nor wrong."
   
5. It is morally acceptable for doctors to kill patients who sincerely ask to die.
   2 / 14 (14%) answered: "It's personal taste, neither right nor wrong."
   
6. Red wine tastes better than white wine.
   11 / 14 (79%) answered: "It's personal taste, neither right nor wrong." 
   
7. Red wine should be taxed less than white wine.
   3 / 14 (21%) answered: "It's personal taste, neither right nor wrong."
   
8. Parents should support their children not to start smoking.
   0 / 14 (0.00%) answered: "It's personal taste, neither right nor wrong." 
   
9. It is desirable to have strict laws to punish the sale and use of alcohol.
   1 / 14 (7%) answered: "It's personal taste, neither right nor wrong."
   
10. The sale and use of all illicit drugs should be legalized for adults.
    4 / 14 (29%) answered: "It's personal taste, neither right nor wrong."
    
11. People who sell sugary foods to children should be imprisoned for at least five years.
    1 / 14 (7%) answered: "It's personal taste, neither right nor wrong."

The high percentage for question 6 does not surprise me: reporting our personal taste in wine seems like a statement of ... personal taste, and we do not expect others to share those taste preferences. 

But the other statements here all seem to me to be propositions that make the same type of claim, so the variation in the numbers who thought them matters of "personal taste, neither right nor wrong," needs some explanation. I would have expected the numbers to be the same for all of the statements here except number 6. But the number are clearly not the same. 

What is the difference between statement 8 and statement 10 that makes number 8 a proposition that is either right or wrong for everyone (93% think it right, 7% wrong), while in contrast, 29% of us think that statement 10 is a matter of personal taste that is neither right nor wrong. I can't see any difference that explains this. 

If you think that 10. is neither right nor wrong, why? How is it different to 8, which we all thought either right or wrong? 

__________

Reference

Filicitti, P. (2015, June 2). 14 responses. Retrieved from https://docs.google.com/a/auathailand.org/forms/d/1MvBd6xsaY2MacnUXpyRFp3mDbwx7oTT0l_V4n4qfZE8/viewanalytics