“…During the last years, the number of infants and toddlers attending ECEC programs is increasing (Organisation for Economic Co-operation and Development [OECD], 2023) and according to the new 2022 Barcelona targets at least 45% of children below the age of three should participate in early childhood education and care (hereafter referred to as ECEC) (European Commission, 2022). This attention to infants and toddlers, at the policy level, draws on research which has proved the critical importance of the first three years of life (World Health Organization, United Nations Children's Fund, World Bank Group, 2018) as well as the significance of providing infants and toddlers with rich and high-quality learning experiences (Chu, 2016;Davis & Dunn, 2019;Quiñones et al, 2018;Redman et al, 2022). Literature review highlights that high-quality ECEC for children under the age of three is related, among others, to educators' qualifications (Cadima et al, 2020;Davis & Dunn, 2019;Quiñones et al, 2018;Redman et al, 2022;Rockel, 2009), their theoretical understandings and perspectives (Cadima et al, 2020;Davis & Dunn, 2019), their professional identity (Davis & Dunn, 2019;Molla & Nolan, 2019) as well as the warm and responsive interaction among professionals and children, their parents and other stakeholders (Cadima et al, 2020;Quiñones et al, 2018;Shin, 2015;Shpancer et al, 2008).…”