I have 3 kids and had them in 3 1/2 years, my first two are 18 months apart and then my youngest was born when the middle one was 2. There were days I didn’t leave the house and when one got sick we all got sick especially a stomach bug, but they are all grown up now. My oldest graduated college last May, and the other two are in college, one freshman the other a junior/senior(credit hours). When they were all home for the holidays it was interesting to see them interacted with each other, at times they seemed grown up and then others not so much.