There is difficulty establishing the idea that attachment could influence future well being as fact because there are so many other factors that need to be taken into account as to what makes someone successful. Furthermore, what can be considered well-being is too dependent upon the person in charge of the study's opinion on well-being.
I totally agree with this statement because I also believe that intimate relationship with your caregiver will not provide you with a successful after life. Furthermore, there are various ways to interpret the standard of successful afterlife. Although secure attachment may bring well being afterlife to some individuals, to some people, they might not consider their lives as well being and successful.