If we tell someone what to do, we may get resistance.
If we ask a question, it invites a response.
I know this is difficult. However, if we create resistance, we're wasting energy. So, if we want to convince people, shouldn't we use the 'question' form? And then, even better a 'nice' question? Like: - You should do it this way! No! Why not say: - Shouldn't you do it this way? Or, better: - Shouldn't we do it this way? (using 'we' works better than 'you') Or, even better; - How should we do this, to get a better result?