Actually, the full eruption of wisdom teeth is less of a concern. It is the non-eruption or partial eruption of a wisdom tooth that is important because they are there but we are unable to see it and they are not straight.
So they can be impacted sideways, against the rest of the teeth. All in all, crowded teeth can be caused by so many different factors that this is just one of them. It is important to have it checked out and take an x-ray if needed or advised by your dentist.