"I do," Dark replied, as their food arrived, "and I know because at seventeen I had no parents and almost no supervision, and yet, when I look back, I was still very young."
More willing to compromise, Daizi added, "Eighteen isn't a magic number, though, to be fair, so a seventeen year old can be just as or more mature as am eighteen year old, even if to someone a decade or more older may find both of them hardly adults."