The ability to save is only a small portion of the financial literacy. If you know how to save but don’t know how to utilise the fund, then what is the use of the saved fund ?

You mentioned your wife financial literacy is almost zero. If you do not allow her to start now, then when is the suitable time?

There are ppl who seek to gain experience by utilising every single fund accessible by them ( own saving or other ppl money ), they didn’t fear to try anything to reach their goal. Yet majority ppl are chained by the “fear”, fear of losing the hard earned saving and forgoing the financial experience they will gains.

Convert the resources you have to the “experience” both of you needed to manage your family finance. Once you gained the needed experience, the question you ask will disappear on it owns in the near future. To solve the problem , solve the core of the problem not the surface symptoms.