Of course, her parents pay for her appartment. She pays, with their money. She uses their credit card, that's what she said on the phone to one of those utilities company.
I guess her parents said ok, you want to live alone, fine, but you take care of everything. And so she had to find a flat, organise the works (painting, floor, whatever), the moving, the furnishing, the electricity/ phone/ cable/ gas... do her shopping, all on her own.
I agree that it's not the least bit realistic though : an appartment that big, that beautiful, for a girl that young who never had to live alone before... Last week, I was betting on a small student flat, twenty square meters top. To start it would be great for anybody, but I should have guessed Sasha didn't do small.
Her parents never seemed to have taken so much care, so she's naturally independant. But still, hosting a fancy party that Martha Stewart would be proud of, receiving guests and at the same time cooking complicated stuff when she probably never had to cook before, it's as fairytale-like as it comes.
That's part of the magic of ASP's little worlds : some characters seem to have supernatural abilities, or days that last 48 hours. Rory Gilmore had the schedule of a secretary of state but could still read a novel by Dostoïevski and one by Dickens in the same week AND have a social life, party with her friends, have supper at her grand-parents, see movies with her mum, go shopping, have coffee at Luke's, have more coffee at Luke's... And when she had a meal with her mum, it was every time a quantity of junk food that could feed a small country of the third world for a month. But they were always model-slim despite the fact that they never exercised. You could hate them, or envy them, or just dream thet it were really possible.
I know people like that in real life, believe it or not. Organised like in the army and never tired and always on time. People who have several jobs and a family life and manage to keep time for themselves. It's incredible, it's unrealistic, but it's true.
Yes, I actually know people like that as well. Weird, isn't it?
Keep in mind though that Lorelai and Rory live in a different plane of time than we do, however. Have you ever seen them talk on the phone? It takes them about half a minute to cover everything important that happened to them that day, squeezing in a half-a-dozen pop culture references....
Yes, when they called each other, or Lane or Sookie. But not when they were on the phone with Emily or anyone from Chilton or anyone from any administration service.
I think our 4 bunheads could do the same, see the beginning of episode 1x11.
I think her parents opened a bank account for her and put in money every month for her expenses. They did not leave her a credit card that is why she had to actually go into a bank and withdraw cash or get a check book or something (she also mentioned she was never inside a bank before, at a separate occasion ranted to her boyfriend about having to pay utilities without a credit card).
She also has a brand new mini cooper, which is not a very cheap car and she clearly is not working so her parents are paying for all these and clearly they are loaded.
But getting an apartment and redecorate and buy all the furniture could set her back like $5000 or something, that is a lot of money to give to a sixteen year old.
A cynic is what an idealist calls a realist - Sir Humphrey Appleby