I think it is wrong to ask the general public what they prefer. Most people honestly don’t know, and if they do, they might prefer the option which is more harmful for their health without realizing it.

Much better is to ask public health experts. Which will look at sleeping patters, at risk groups, etc. I’m particularly worried about teenagers which will be forced to wake up before sunrise and are unlikely to go to sleep earlier under social pressure (including from their own family).