Why was Jesus well-schooled
Yes. He grew up in the temple. As his father was a carpenter, he learned a skill. Many a person without even a donkey is mentioned in the bible so to imagine Jesus to be 'poor' would be incorrect. He was schooled because he wrote in the sand. At that time though, he had only returned from the desert that almost killed him. Given the parables he told, anyone tells stories of what they have personally experienced better than making up fiction. Most disassemble the bible. Disassembled, it's like the stars in the night sky.
It's a teaching aid from 12 years old at a time kids played to that age. A course of study how to live a good long life. It starts with separation. Light from Dark, knowing from unknowing. When a baby is born it is unknowing and awareness of light and dark becomes known. Rebirth. How many claim it, how few really experience it. It's the toughest calling. But Psalm1 defines it.
Psalm 1King James Version (KJV)
1 Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful.
2 But his delight is in the law of the Lord; and in his law doth he meditate day and night.
3 And he shall be like a tree planted by the rivers of water, that bringeth forth his fruit in his season; his leaf also shall not wither; and whatsoever he doeth shall prosper.
4 The ungodly are not so: but are like the chaff which the wind driveth away.
5 Therefore the ungodly shall not stand in the judgment, nor sinners in the congregation of the righteous.
6 For the Lord knoweth the way of the righteous: but the way of the ungodly shall perish.