What are the cause of left handed people using right handed things?

Left-handed people often use right-handed tools and products because most items are designed with the majority (right-handed individuals) in mind. This prevalence leads to a lack of left-handed options, forcing left-handed individuals to adapt to using right-handed items. Additionally, many left-handed people learn to use these tools out of necessity, developing ambidexterity in the process. As a result, they may find ways to use right-handed tools effectively despite the challenges.