There are articles proving this evidence. According to Zizek (2018) in 1968, “the French “progressive” press published a series of petitions demanding the decriminalization of pedophilia, claiming that this would abolish the artificial and oppressive culturally constructed frontier that separates children from adults, and would extend to children the right to freely dispose with one’s body” (p.127). Among the people who signed these petitions, there were Simone de Beauvoir, Jean-Paul Sartre, Jacques Derrida or Michel Foucault, among others (Mohiuddin, 2008).
In these articles there is more evidence in the same direction:
Žižek, S. (2018). Provocations: The 1968 revolution and our own. World Policy Journal, 35(2), 124-129. (Scopus Q4 in 2018; Q3 in 2019)
Levy, L. (2016). Thinking with Beauvoir on the Freedom of the Child. HYPATIA-A JOURNAL OF FEMINIST PHILOSOPHY, 31(1), 140-155 https://philpapers.org/rec/LEVTWB-2 (JCR Q2 in 2016; Q3 in 2019; Scopus Q1 in 2016; Q1 in 2019) almetric https://cambridge.altmetric.com/details/4728556
Mohiuddin, Y. (2008). Bernard Kouchner: Radical Leftist Turned Globetrotting Diplomat. International Journal, 63(3), 743–749. https://doi.org/10.1177/002070200806300319 (SCOPUS Q3 in 2008; Q3 in 2019) (JCR Q4 in 2008) Altmetric https://www.altmetric.com/details/doi/10.1177/002070200806300319