You say they weren't brought up this way .are you sure ? As in , was there expectations /level of responsibility when younger ? I guess a bit like a partner you have expectations of behaviour. It's not talked about its expected. Usually if a partner is 'lazy ' it's because we have lower expectations of them . Could you restart . At dinner give each child their own responsibility . If they know what's expected they are more likely to do it as in one is responsible for emptying the dish washer . One is responsible for emptying bins . That way its also visual so they know when it's needed to be done definitely smaller steps . Good luck