Conversation so far:
What did Ayumi Hamasaki do in Ayumi Hamasaki's childhood that's of importance?
Born in Fukuoka Prefecture, Hamasaki was raised as an only child by her mother and grandmother.
Her father had left the family when she was three.
Why did he leave?
CANNOTANSWER.
What were some of her early endeavors?
At age seven, Hamasaki began modeling for local institutions.
Where did she model?
for local institutions, such as banks, in order to supplement the family's income.
Was she successful?
She continued this career path by leaving her family at fourteen and moving to Tokyo as a model under SOS, a talent agency.
Her modeling career did not last long.

Question: Why didn't it last?
Self-contained rewrite: Why didn't Ayumi Hamasaki's model career last?