It's useless, because learning Buddhism focuses on cultivating the mind, either by yourself or by yourself, and then return it to your mother, which will be effective. Otherwise, simply wearing Buddha and Bodhisattva will only benefit those who see it and add a little blessing. Without confidence in Buddhism, it will not have much effect.
I'll teach you the easiest way to make my mother recite "Southern Myrrh to Eliminate Disasters and Extend Life" when she is free. This Buddha statue is particularly helpful to health. The patient recited it himself, which was of great merit and good effect.