One question you should ask yourself as your planning any science fiction story is why is it science fiction? Why not set it in the here and now?
Making something science fiction adds word count, it adds complexity, it adds a lot of work. Could this story be told without the science fiction elements?
If the answer is yes, then don’t make it sci-fi, if no then your good to go.
Besides wasting words this can be a problem because when people read science fiction they want to read stories that can’t be told any other way. They want to read about problems and solutions that could not happen today, about ways of looking at things that never occurred to anyone in the hear and now. Your going to disappoint them if you write a modern story where the backdrop and only the backdrop is science fiction.
