Why there's no information of Jesus teenager life?

Answer 1

The Bible only touches briefly on the circumstances surrounding Jesus' remarkable "birth."

But the core of the "gospels" deals with the time frame of the first part of Jesus' "earthly ministry," leading up to the time of [the Passover MEMORIAL] OF HIS DEATH... which didn't occur until He was in His thirties.

The "gospels" don't serve as a "detailed biography of Jesus' life"... but as an account of the beginnings of the fulfillment of God's plan of salvation for man... as revealed through God's seven "prophetic" annual Holy Day feasts described in Leviticus 23.

Jesus shall eventually fulfill them all... and it began with the first one; the PASSOVER:

"...For even Christ OUR PASSOVER is sacrificed for us: therefore let us keep the feast..." (I Cor.5:7-8).

How Jesus was reared and grew up as a youth and teenager might make for enthralling conversation and entertainment at the banquet table of the Lord in the Kingdom when He returns... but it's not germane to the "good news" [gospel] MESSAGE of that coming Kingdom. Which is what the gospels are about.

God's plan is on a "time schedule." And the gospel accounts are "timed" to coincide with Jesus' fulfillment of the first phase of that plan: His death and resurrection from death; the beginnings of the fulfillment of the prophecies; the real life Hope of man's salvation. Not a biographical sketch of His entire mortal life.

"...Jesus went to Galilee to preach God's Good News. 'Atlast THE TIME HAS COME!' He announced. 'God's Kingdom is near! Turn from your sins and act on this glorious news!'" (Mark 1:14-15 LVB Living Bible)

That "TIME" wasn't when Jesus was a "teenager"... it was when He was in His thirties.