May I suggest starting with the volunteering and teaching, costing only your time initially, then only offer financial support (with strings attached) once you've established a rapport and earned their trust? This isn't some predatory act, just have something in writing that they will actually pay you back for what you loan them financially. Your call if you pursue interest.

Part of learning to manage your finances is honoring debts. There's less incentive to save and budget if you're always receiving handouts without any expectation of reparation. You'd be helping them learn valuable lessons beyond IT.