“…Based on this perception, it is concluded that there could be other various classifications of the workforce, not only based on the cohort year range, which could be changed as time goes on regarding the context. as the USA (Anderson et al, 2017;Archibald, 2013;Bennett, 2020;Cohen, 2019;Ferri-Reed, 2014;Ferris et al, 2018a;Kim, 2018;Kosterlitz & Lewis, 2017;Scott, 2017;Stewart et al, 2017) Germany (Grotkamp et al, 2020;Percy-Smith et al, 2019;Rudolph et al, 2018) and other Europe countries: UK (Baum, 2020;Geerts et al, 2020;Thompson & Gregory, 2012),…”