Entrepreneurship education is believed to instil a passion for entrepreneurship. However, research on how this enthusiasm develops in young people when entrepreneurship education and the social structures of family relations intersect is yet to be undertaken. Utilising an integrated entrepreneurial identity–intention–education analysis, we studied 320 entrepreneurship summer school participants in America. Regression and equation modelling results confirmed that the mature they were in their younger age, the more pronounced their entrepreneurship identities and intentions became. Support from extended family members on their entrepreneurship thoughts and aspirations amplified their entrepreneurship identity and intentions development processes. While this type of support augmented their entrepreneurial behaviour, support from close family members produced inconclusive results. Collectively, this contributes alternative theorisations of entrepreneurship action by drawing upon an overlay of entrepreneurship education, maturity, and family ties to showcase how it variously impacts young people’s sense of being and entrepreneurship with economic and social application.