Personal limitations are most often described as the limits that a person has in regards to the people and environment around them such as boundaries. Sometimes personal limitations are also used to describe physical limitations (disabilities) such as an inability to see or inability to walk.
An example of a personal limitation might be someone who is uncomfortable helping friends financially. This is a personal limitation because there are plenty of people who will help their friends with financial troubles while others will not. Limitations can also be present in the amount that someone is willing to help. Every individual has their own personal limitations on what they are and are not willing to do for others, for themselves and for their environment.