BLW

Hello mummies! My LO is 1 now. I am trying to do BLW but my mom who takes care of her does not want to do it as she is afraid my LO will get choked. Whenever I try to do BLW she will discourage me saying that my LO will get choked, so big piece she can swallow? So am thinking how can I convince her to allow BLW? Any moms share the same experience? TIA.