I'm a first time mom who is just starting to dive into baby registry world. I love the look and ease of the City Mini GT, and was planning on it being our stroller when I just realized that it doesn't convert to a double. I think I would want a second baby fairly soon (2 years?) after my first.
So I have some questions for all you Moms out there!

How did you plan your stroller situation?
Did you have to buy a double stroller after you had your second?
At what age do kids stop needing/wanting to be in a stroller?
(e.g. if there is a two-three year gap is that wide enough for a kid to walk and just have the new baby in the stroller?)

any advice/ recommendations is welcome