How can a 16-year-old agency owner build trust and be taken seriously by clients despite their age?
It's a combination of factors. Being young means you lack perceived authority and life experience, and you likely haven't had enough time to develop sales skills. Statistically, you haven't been on the planet long enough to be seen as qualified for the kinds of jobs clients want, and you're still new to sales. To overcome this, you could have someone older act as the face of the business while you handle fulfillment behind the scenes—using an Upwork profile or a family member, for example—and communicate via messenger instead of face‑to‑face calls. This is a pragmatic way to move forward, though you'll still face an uphill battle. Another option is to gain more sales experience first, perhaps by taking a phone‑sales job for a year or two before diving into agency work. I've found that as I've gotten older and more mature, earning trust has become easier; it's a mix of age, maturity, and skill. I'm not trying to discourage you—many people are willing to work with motivated, young, technically competent founders and would even take your calls and discuss a profit split. You already have a strong starting point.