I don't understand why my comment stirred any polemic at all... I suppose it was due to my poor English skills. Anyway, I want to try to explain my comment as well as I can as not to cause any more trouble: I didn't mean that the question wasn't good, I was just trying to point out how I was going to answer it specifically, myself. So, quoting @ Уенди (ウェンディ)'s comment:
"You ( Thayná Camila) were not only asking what someone would WANT to learn but also what someone MAY want to learn but never get around to. Both of these are implied, and I don't think there is any native or fluent English speaker who didn't understand that."
All I did was trying to establish that I was going to answer meaning 1 ( what someone would WANT to learn but also what someone) rather than meaning 2 (what someone MAY want to learn but never get around to). If I didn't feel that both those meanings are implied in the question... then I think I probably wouldn't have tried to specify/clarify the way I'd take when answering.