You're right that the generic story isn't really attached to statistical data that would make it meaningful. However, if you want specifics on the story, it's my mother in law.
She could either pay the rent or buy alcohol. She purchased alcohol and was evicted form her home.
Living homeless in the park, she and her children didn't eat for two days. When she received money, she decided to continue forgoing food to spend the money on alcohol.
After over a month of homelessness, during an Indiana winter that was below freezing during the day and colder at night, she was offered private housing and food for herself and her children. The only catch was that she'd have to remain sober. She preferred the alcohol. My wife has permanent medical problems from sleeping in those conditions.
She didn't steal from her daughter's piggy bank to buy alcohol. She did use her daughter's social security number to apply for a student loan, then use the loan money to go on a bender.
Alcoholism isn't just a generic scare story told by DARE officers to keep kids from drinking. It's a real issue killing a real woman named Virginia.