Hi @vssierpi Great question! The course is designed to prioritize the most commonly used structures in everyday Spanish, which is why you've seen ir a + infinitive for the future—this is actually the most common way people express the future in spoken Spanish. While the simple future tense (futuro simple) does exist, it's often used more in formal writing or for emphasis.
The subjunctive and imperative moods are definitely important, but they tend to be introduced later because they can be complex and are used in specific contexts. Many language programs take this approach to ensure learners build confidence with foundational structures before diving into more advanced grammar.
It's great to hear that you and your wife are progressing so well! Let us know if you have any other questions.