The reading states that secure attachments are more likely to occurr in middle-class families than in lower-class families. Therefore, this correlation between well-being and attachment could be caused by differences in income. A middle-class family is more likely able to afford college for their children, whereas lower-class families may not. Going to college versus not, makes a big difference in well-being later in life.
I agree with your statement. Going to college is a major factor in your well being later on in life. College is probably more important than your personality as a baby later on in life.
I agree with your explanation as being able to afford and go to college allows one to have a better job/a job they enjoy versus an individual who comes from a poor family and is simply working to earn money. The one from the richer family with a job he enjoys will have a better well-being later in life versus the individual from a poor background who does not and is unhappy with his life.
While college certainly improves you situation later in life, I don't think and solely judge how well someone's adjusted to life based off a job from a college degree (we've all heard of the ivy leaguer who is unhappy because he is trying to win his rich father's approval by playing football when all he wants to do is paint). While having money takes care of the creature comforts that surely make life more comfortable and safe while growing up, having gone to college does not make a well fulfilled person.