We use TikTok because it is the only major platform where reach is driven by content quality rather than follower count, which means a new account can generate a meaningful audience from day one instead of spending months building a base. Its live format is native and heavily promoted by the algorithm, so streams get pushed into discovery feeds and reach people who have never heard of the brand, not just existing followers. The audience skews toward the 18 to 34 range that dominates mobile commerce in Latin America and US, and the culture of the platform is conversational by default: viewers expect to comment, ask questions, and get answered in real time. Instagram and YouTube reward established followings and lean toward passive consumption. TikTok rewards the exact behavior that Stream to Sales depends on, which is strangers discovering a broadcast, engaging with it directly, and identifying themselves as interested while it is still happening.