Although these aspects are heavily implied, I'm taking them more as strictly canon.
Your parents would be more concerned on the matters of religion than you. To make it worse, they even tried to pass on the healing gift of Sylvian to you. From very early on you learned that no gift comes without a price. With Sylvian's "gift of healing" you saw how the mental state of your parents deteriorated over time.
Considering the focus of sex being part of the Sylvian cultists and the meaning of "passing on the healing gift", it's heavily implied that Daan was eventually dragged to join in on the constant orgies his parents would often go to.
They spent longer and longer times on the meadows. Until one day they never returned... You were 13 years of age and alone in the Kingdom of Rondon. You had to do something for living. You didn't have any natural talent as a pickpocket per se and the underworld of Rondon was very rough on you... You weren't cut out to be a street thug, so you had to rely on the only skills you had for the money... The healing gift of Sylvian.
Thus, as a result, the additional implication is that Daan as a teenager spent time doing sex work until he achieved enough affinity with Sylvian to obtain the spell Loving Whispers.
SYLVIAN CULT & HOMELESSNESS IN RONDON [nsfw][cw: csa, prostitution]
Your parents would be more concerned on the matters of religion than you. To make it worse, they even tried to pass on the healing gift of Sylvian to you. From very early on you learned that no gift comes without a price. With Sylvian's "gift of healing" you saw how the mental state of your parents deteriorated over time.
Considering the focus of sex being part of the Sylvian cultists and the meaning of "passing on the healing gift", it's heavily implied that Daan was eventually dragged to join in on the constant orgies his parents would often go to.
They spent longer and longer times on the meadows. Until one day they never returned... You were 13 years of age and alone in the Kingdom of Rondon. You had to do something for living. You didn't have any natural talent as a pickpocket per se and the underworld of Rondon was very rough on you... You weren't cut out to be a street thug, so you had to rely on the only skills you had for the money... The healing gift of Sylvian.
Thus, as a result, the additional implication is that Daan as a teenager spent time doing sex work until he achieved enough affinity with Sylvian to obtain the spell Loving Whispers.