Age gaps are unavoidable. Since everyone was born at different times and places, we all are generally, a different age. This can range from a one hour difference to a 90 year difference. When there is an age gap between two specific people they can see many different things in completely different lights, due to their age differences. The world changes often.
Age gaps matter a lot. While smaller age gaps in relationships are fine, very large age gaps tend to be very problematic. Most of the time, the older one is not able to keep up with the activities that the younger one does. This creates issues in the relationship, leading to the relationship ending.