Vellus hair is short, fine, and usually unpigmented—it’s the same stuff you see on a baby’s cheek. It helps regulate body temperature, so it’s not useless, even if it feels annoying.
Contrary to old wives’ tales, shaving it does not make it grow back thicker or darker. That myth comes from the blunt edge of cut hair, which feels coarser as it regrows.
Your fuzz is part of your natural glow. The decision to remove it is purely about personal preference—no need to feel pressured by social media filters.