Not at all! In fact, we see it as a sign of respect.

It will also help you with the heat! these things are designed for the hellish weather in this desert. 

One thing to remember, be sure to use the right name in the right place, for some reason it has many names depending on the place. The name "Thobe" in the UAE for example is used for ladies dress, while Kandura anywhere else but the UAE sounds funny.