You can try to transfer from your CPF OA to her RA instead of giving her cash. Since she's on CPFLIFE, a couple of months after receipt of your CPF OA, her CPFLIFE payout will increase a bit.I never gave my mum allowance as she has CPFLIFE and a temp job
Plus I am paying back her the money which she paid for my dad's funeral expenses
But told her I would start giving her allowance after I have finished paying up the personal loan ,which takes a few years