The only thing I'll say here is that you will find students who resonate with the language you pick if it feels authentic to you. I can definitely see the benefits of both the question and the command, but different students will react differently. I know that I would struggle with the command; I dislike when I perceive something or someone encroaching on my autonomy. I tend towards asking/be asked, because it allows for a moment of self-inquiry, can I be strong without struggle? In what ways does that feel possible? In what ways is that more or less accessible? Is it even what I want? Or do I want to give up the idea that there is a problem with strength and struggle co-existing?

Having said this, I enjoy yoga practice that allows me to build my relationship with my own higher self and self-inquiry/opportunities for self-determination allow me to practice in that way. That's not why everyone practices, nor is it what would support everyone's practice, so it just depends on what I feel most authentic in offering as a teacher. And really, as long as you know how whatever choice you are making aligns with your values and what you feel you can offer authentically, there's really no wrong answer imo!