Basic Trope: Someone restricts access to money that another character needs.
Straight: Alice has earned lots of money in her music career, however, her parents take all but a nominal $100 a month from her to use for themselves.
Exaggerated: Alice, despite earning every penny herself, never so much as sees one penny she's earned. Meanwhile, her parents have just bought themselves two new luxury cars and a vacation home in Tahiti.
Downplayed: Alice has earned lots of money in her music career, but the rest of her immediate family is mostly unemployed. After the rest is payed for, bills and food, there is usually money left over, part of which is begged away by her family and spent on things ranging from new clothes to interview in to a tattoo because it "looked cool".
Alice has proven too irresponsible in the past to handle money; her parents restrict her access to it in an attempt to teach her fiscal responsibility.
The money is going towards something for Alice, such as a new car or a college fund or a wedding, something she doesn't have yet but will have in the future.
Alice's family is impoverished. While she's still a dependent, her job pays only a little less well than her parents' and makes a vital part of their overall income. Until she gets a job that pays enough for her to support herself independently, the family simply cannot afford for her to keep her money and eat their food.
Alice's family are completely unaware that they have taken things too far. At first they were simply taking some money from her earnings because they felt they needed it for some reason, and they got so used to doing it that they started to put more restrictions as Alice's career bloomed, unaware of how much they were restricting her.
Inverted: Alice has her parents' money direct-deposited into her account and only lets them have a little of it.
Subverted: The parents seem like they're about to do this, but they relent, and Alice gets to keep most of the money
Double Subverted: But her parents make her give up a good amount of it for "room and board"
Parodied: Alice wears rags and lives outside her parents' mansion in a cardboard box, picking through their garbage for tiny scraps of food.
Zig Zagged: ???
Alice is allowed to keep most or all of her earnings.
Alice does not earn any money
Enforced: The writer is making a character who is both famous enough to be an idol, but at the same time poor enough to connect with the rest of the normal folks.
Lampshaded: "Alice, has it ever occurred to you that your fame means you should be the one who can crash a sports car and not care, not your parents?"
Invoked: Alice earns lots of money, and her parents worry about her losing it all.
Exploited: Alice keeps letting them do it, eventually getting to the point where she can legally sue them for preventing her from having the money she needs.
Defied: Alice's parents let her have all her money. If she makes mistakes with it, they want her to learn from them.
Implied: Alice occasionally throws fancy parties for her friends, gets unlikely funding for events from her parents, and has quite a few nice things, however she and the rest of her friends always ration their money, although she occasionally gets free things and will point out different songs she made.
Deconstructed: Alice will never learn financial responsibility if she has no money to spend or save.
Reconstructed: Alice's parents realize that rather than just teaching, they are actively pushing her to poverty due to how much they withhold, and start to work out another system to help Alice not spend her money.
Plotted A Good Waste: Alice's big break has finally arrived. She can move out on her own with her boyfriend she's been with since before she started singing, and have the responsibility she wants. Then she finds out her parents have removed most of the money she had built up preventing her from moving out, meaning that after years of trying she still can't move in with her boyfriend.