A vast majority of the world's population. People who were born to parents who only got married and had kids because it was what everyone else was doing. The parents of planned unwanted children had no clue how to be parents and had no money to properly give their kids opportunities in life but had kids for reasons like "all my friends are having kids" or "I feel kids will bring joy to my life" and "it's what people do, it's life".
As a planned unwanted child myself i beg of the entire world... don't have planned unwanted children. Get rich first, then have kids. It will help solve a lot of the world's problems.
If you were born poor and had to work your entire life at jobs you can't stand just so you can pay bills and scrape by, chances are you and your siblings were planned unwanted children.