We use story points to estimate our user stories. We find that story points solve the problem of underestimating the amount of actual work which is required to complete a task, as it takes the complexity of a task into account along with the amount of work. But some team members find it hard to stop estimating in hours, especially when they are in a hurry. It's a common question to ask for the burnrate when we are having a sprint planning meeting. But since we believe that the burnrate will be more accurate if the person does not calculate his estimate based solely on hours, we want that to change.
Can someone help us with how we can make the team compare tasks and get to an estimate which includes complexity and amount of work instead of just calculating it with hours multiplied by our burnrate?