Eight in the morning is not a time that really anyone wants to worry about responsibilities at, especially college students. If it's winter or late fall, it's dark and cold. If it's edging into spring, the sun is just rising and the weather is warm- no one wants to be stuck in a office or classroom. Everyone will tell you that taking an eight AM class is a horrible idea, and they're absolutely right. Chances are, you'll sleep through class a lot, or at least be late. When you do make it to class on time, you'll spend the full hour to hour and a half regretting your decision to register for a class at eight in the morning. Here's the thing though- at some point in time, you're going to have to take an eight am. There will be a class you want to take or have to take to graduate that is only scheduled at that time. Even in the slim chance that you don't, you'll have to be able to get up for a 9-5 job, so getting yourself into a schedule is a good idea.
I took my first eight AM class my spring semester of my sophomore year, and at first, I did hate it. Waking up and walking to class when it's cold and dark is miserable. Sitting in a classroom with about ten other people because everyone else is still asleep makes you want to run back down out the building and back under the covers of your warm bed. However, as much as I hated getting to class some days, and even though I was late fairly often, getting up that early got me into a routine. I had so much extra time to get everything done. I scheduled my classes earlier in the day and was usually done with all my responsibilities by one, which was a great feeling.
Aside from being able to get everything done earlier in the day, having to get up before eight in the morning made it much easier to wake up for a 9:10 class, or even a 10:20 class, because let's face it- if you can't get up for an 8:00 class, you will struggle to wake up for any other morning classes that are only an hour later. If you're not a morning person, you need to get into the habit of waking up early so you can handle doing so when you get out of college. My mom woke me up for school almost every day when I was in high school, because I hated to get up on my own. Going to college and waking myself up was a huge change for me, and taking an eight AM class- although it was halfway through my college career- made it much easier for me to get up for the rest of my classes that semester since they were all later.
Although waking up before eight in the morning to go to class isn't always fun, and you probably shouldn't take many if you don't like being awake early, taking at least one eight AM class throughout the time you're in high school is beneficial to your ability to prepare yourself for the future. Besides, who doesn't like being done with class before everyone else's day has even started?