

I don’t understand your reasoning. Do you think being married is less complicated than not being married? That logically doesn’t make sense. Doing nothing (not getting married) will always be less complicated than doing something (getting married).
Why do you need a symbolic commitment instead of just commitment? 17-30 is a period full of change for many people. You might decide to study or pursue a vocation in different places, you might find out one wants the city and another a small town, you might find out your political ideologies are in the midst of a major change, and so on.
It doesn’t really seem as if you’re actually open to another opinion but you’re looking for affirmation that you’re making the right choice. Maybe ask yourself why you need that affirmation. Do you want the same things? Which dreams do you have? Which plans? Where do you stand politically and ideologically? What does marriage mean to either of you? Did you have the idea of marriage by yourselves? Was it parents, or society, or media, or really just you who had the idea?
Marriage isn’t a fairytale. More than half of them fail. If your reaction to my comment is “fuck you, I’ll show them”, then you’re definitely getting married for the wrong reason. Just be clear about your reasons. If they are genuine and you both are on board. Then go for it.

They are much laxer for USAians than they are for poorer third-world countries, I’ll tell you that much! Don’t kid yourself, the USAian passport still has a lot of strength. It opens doors to many places.
If you want to move, there are actually many options, it doesn’t have to be Europe. Vietnam for example needs English teachers and they aren’t exactly picky on how well you speak English. If you can speak another language, you already have one leg up compared to your mono-lingual compatriots e.g Spanish cat get you to many places.
Simply going “oh, it’s hopeless, I can’t move anyway” is the wrong attitude. If you have studied, you already belong to 30% of the population that has. Try applying abroad. If you haven’t studied yet, get a loan, study (pick a study that has a future), leave the US and never return. There’s no need to pay off the load if you leave because having debt isn’t illegal and they aren’t going to drag you back from another country to pay your debt.
What I’m saying is, there’s options. If you’re USAian, living in the USA, you live in one of the most prosperous country in the world and have quite a few advantages over say a farmer in Mongolia or an Iranian. If an Iranian can get out of Iran and become a citizen of a European country, so can you.