every two years doesn't feel that aggressive. my brothers and me are closer together. and most people i know are similar. my own kids are spread out by three years, and that's only because the doctors here said that after a c-section you have to wait 3 years before you can have another child. to me that feels quite spread out. the age difference between the oldest and the youngest is 6 years, and sometimes it's a challenge for them to get along because of that age difference.