What are the uses of obtaining a B2 license in your 30s?

[SanDakota]

The B2 license allows you to drive medium and heavy-duty trucks, as well as other permitted vehicle types including C1, C2, C3, C4, C5, and M. Requirements for obtaining a B2 license: Age between 20 and 60 years old, height of at least 155 cm, naked or corrected visual acuity of at least 5.0 on the logarithmic visual acuity chart, no red-green color blindness, ability to distinguish the direction of sound sources with each ear at 50 cm from a tuning fork, intact thumbs on both hands with at least three other fingers intact on each hand, normal limb and finger motor function, intact lower limbs with normal motor function, leg length difference not exceeding 5 cm, and no motor dysfunction in the torso or neck. Circumstances prohibiting application for a B2 license: Being responsible for a fatal traffic accident with equal or greater liability, driving under the influence of alcohol, or having your driver's license revoked or rescinded within the past ten years.