The following ideas will help you build responsibility as one your child's characteristics. Do not assume your child understands what you expect. Be there to check on what your child knows and be ready to redirect activities that are not appropriate to good responsibility. Do not continually rescue and explain to your child what you expect. In other words, give your child plenty of opportunity to be responsible.
Experience is a very effective teacher.
Rather than giving constant direction, encourage your child with reasonable expectations and positive response to their efforts. Celebrate any action in the direction of the child's taking responsibility. Help the child learn to cope with the failure that irresponsibility brings. Remember that all children model their actions by what they see the adults in their lives doing. Helping your child learn problem solving skills.