“…These services are organized and managed in regards to the sections of the population at which they are aimed. The following factors are taken into account, without forgetting the previous contributions of other researchers: health (Goldman & Tabak, 2010;Greene & Kulper, 1990;Kadushin, 2001;Proctor, Morrow-Howell & Lott, 1993;Sparks, 2006), childhood (Meysen & Kelly, 2018), immigrants (Furman, Ackerman, Loya, Jones & Egi, 2012;Mänttarivan der Kuip, 2016), women (Cervantes, 1993;Lindhorst, Macy & Nurius, 2005;Wiech, 2009), family (Handon, 2009), homeless (Banks, 2011;Spijkerboer, van der Stel, Widdershoven & Molewijk, 2017), ethnic minorities (Pergert, Ekblad, Enskär & Biörk, 2008;Van Keer, Deschepper, Francke, Huyghens & Bilsen, 2015), youth (Banks, 2012), prisoners (Baldry & Sotiri, 2009;Toi, 2015), the elderly (Bergeron & Gray, 2003;Fitting, 1986;Smebye, Kirkevold & Engedal, 2016), refugees (Barrero, 1993;Hayes & Humphries, 2004), educational centres (Allen-Meares, 2004;Constable, 2002;Dupper, 2003;Openshaw, 2008;Reamer, 2003;Roberts, 1971;Villarreal, 2017), mental health (Molewijk, Hem & Pedersen, 2015), disability (Donat, 2005;Iacono & Murray, 2003;Wilkins, 2012), and drugs …”