My immediate reaction was, "No, it's not. It's exciting!"
I thought some more about the statement, trying to be fair. But, really, I just couldn't see scaring people off with that kind of statement. If it were me writing for the beginner artist, I would say: Trying something new is exciting. You're on the threshold of opening a brand new world for yourself, perhaps hours of sheer joy. Plunge in! If your first attempt doesn't work, and sometime it won't, what have you lost? A piece of paper, a little paint. Keep going. Do it again. Remember it takes practice, and you have nothing to lose but that piece of paper and a little paint.