Your situation has really hit a nerve with me. It's something that my grandfather did with my grandfather. My great aunt and uncle where married 73 years each week he gave her money for groceries to get her hair done and to go to coffee with her friends. But when he got us pick her kids had to step in. Why because she had never written a check and did not know how to pay any bills. It's was sad

In high school when me and my BFF went out on dates we usually double dated before we left her mom would safty pin a $20 bill in our bras just in case.

Just a thought