WJB - FWIW, Spartans finished their "basic training" at age 20 when they became full-fledged members of the army. They, however, did not become adults, with full marriage rights, until age 30, when they became voting members of the Apella. On the other hand, the Gerousia, except for the 2 Kings, was restricted to men aged 60 and over. Make of this what you will.
Pax,
Dave Krein '42
"The Moving Finger writes; and, having writ, Moves on; nor all your Piety nor Wit shall lure it back to cancel half a line, Nor all your Tears wash out a word of it." - Omar Khayyam.