MICHEL: Oh, yes, that’s right. Tomorrow the two of you go back to school.
LORELAI: It’s not school, it’s a one-day course at The Learning Center.
In real life, The Learning Center in Hartford is a preschool program for small children. There are a few adult education centres in Hartford, but they tend to focus on government programs such as GED testing, citizenship tests, and learning English as a second language.
Jackson learned beekeeping, how to buy foreclosed real estate, and diary writing, and all these educational opportunities are available in Connecticut (although not at the same place), so this doesn’t seem unrealistic.