Thunder occurs after lightning, because light is faster than sound.
Shifting the focus to how the author needs his mother's support at the end of the argument might be considered an example of false causation fallacy.
Explanation:
In case of false causation the causes of the fallacies are incorrectly identified. In this case although one event is related to another event and the events take place at the same time . Although if the events are talking place at the same time but the events are not connected to each other. In case of false fallacy real relationship do not exist between the variables . One of the example of false causation is that whenever I go to the the bed at night for sleep , sun also goes down as well.
The heading in a business letter should tell you where and when