Why shouldn't I have a dog???

I am getting ready to purchase a Great Dane, something I have wanted to do for a very long time, and I feel as though everyone around me thinks it's a bad idea. Why is that? I think I am plenty old enough to be responsible for a dog. I am pretty sure I am finally at a time in my life when I can support a dog. If the last semester is any indication, I think I have the time for a dog. What's the problem? Here is my point of view....

It seems to me that people probably think at least one of these things: I don't have time. I'm not ready for a dog financially. I don't really like dogs and would not want it for very long. Great Danes, being a larger breed, need a lot of space, time, and exercise.

None of those are true. I do have time. I spend a lot of my time at home, either watching tv, reading, on the internet, homework, etc. Those are all things I can do with my GD. They LOVE being lazy. Everything I have ever read about GDs is that they like to lounge, they don't need a lot of exercise, they are laid back creatures. How does that not fit into my life?!? I make fairly decent money for a poor college student, maybe not for an intelligent 25 year old, but for a college student, yes. Ok, so I may not be a small, yippy dog lover, but I am a large dog lover. I want a dog I can cuddle on the couch with, or take for a stroll in the park, or just sit and pet whilst doing absolutely nothing! Great Danes are perfect for all of that! Look it up, I did! So, before you judge me, and my decision on not only getting a dog, but on getting a Great Dane, think about what my life is, and look up what a Great Dane is like, and see if the two don't coincide. I've done my homework, thanks.