I don't really like them because I am so short and they make me look like a trash bag, but my friends, who are taller than me look GORGEOUS in them. It makes me so jealous that I am not taller. Just hold the front with one arm, also, you can have them hemmed for pretty cheap, so that they are a couple of mms above your toes. Maxi dresses are so pretty and feminine! Definitely go for that!
I like some...I only own one dress (that I got last summer) but I've been trying them on for years and never really liked how they looked on me. I think you have to find the right one. If they are the right length, you won't trip on them and depending on how much fabric it has it won't tangle around your legs. Mine has a split in the back (middle) that goes up to around my knees so that helps in walking. I don't think there is much difference between wearing a maxi dress and shorts...I guess it depends on the fabric of the dress though (if it is really heavy and thick it might be a little hot).