It could be that she is lazy but we don’t really know. We don’t really have enough info to go by.

Her mom might be extremely lonely and needs to feel useful so perhaps she is very happy to be busy cooking for family members, otherwise she’d fall into depression. Maybe for mom it’s the only way to stay involved. Maybe she loves it. Maybe daughter gives her something in exchange. We don’t know what’s free or what’s not. Families have various arrangements with helping each other. It might also be cultural. Family members who don’t work cook for those who do. Maybe mom refuses to take payment. Who knows? Not enough info here to judge what’s going on

So we don’t really know if this person selfishly enlists people to do things for her or that’s mutually beneficial agreement. It doesn’t sound like she forcefully makes people do things for her. We just don’t know. We aren’t in that family