I wasn't sure where to ask about this but long short short - my sister and I lost our Mum to cancer (after a very long period of severe illness) at the beginning of the year. My DS was incredibly close to his Grandma but was 2.5years when she passed. We've told him she's in heaven and we'll see her again one day. However he will, unprovoked, ask about her - when is she coming, can I call her etc. He started asking my sister about his Grandma today and then appeared very sad talking about her.
My sister is saying I shouldn't talk about or mention his Grandma at all and shut down all talk in the future for the sake of his mental health.
AIBU to think that's a massive ask and that he needs room to grieve too? Am I going about it the wrong way to keep his Grandma's memory alive?