Final answer:
The question lacks context, making it impossible to provide an accurate answer regarding why Trevor couldn't be seen with his mom. More information about the story or situation is needed to determine if it relates to cultural beliefs, safety, skin color, or health reasons.
Step-by-step explanation:
The question does not correspond to factual information, as it seems to be based on a context that is not provided. There may be a reference missing to a specific story, case study, or allegorical situation where the character Trevor could not be seen with his mom in public. Without the right context, it is impossible to determine the correct answer. If the context is known, it could be about social issues pertaining to cultural beliefs, safety concerns, skin color, or health reasons. It is important to have the full context to provide an accurate and informative response.