While retirement planning is on everyone’s to-do list, it is often delayed or procrastinated. Some people begin planning their retirement in their 20s but most people don’t start thinking about it till they are in their 40s.Experts advise that individuals should begin planning their retirement early as soon as they get their first stable income. Parents also encourage kids to start Systematic Investment Plans (SIPs) in order to instill good and healthy financial habits. However juggling SIPs, work schedules and budget planning, some important lessons are often forgotten or remain unlearned. This in turn can lead to investors making mistakes when it comes to retirement planning.