In Jain tradition, “Bal Sadhu” is a general term for a child who has taken Jain sadhu‑diksha (bal diksha). It is not the fixed name of one single person.

Because of that:

• Yes, there are video interviews and talks of different Jain bal sadhus / bal sadhvijis recorded by various Jain organizations and local media (especially around the time of their diksha or on Jain TV/YouTube channels).
• These interviews are scattered across many private and community channels; there is no single official “collection” that I can reliably point to from scripture or standard Jain granths.

If you want to find them, the practical way is to search (on video platforms) using terms like:

• “Jain bal sadhu interview”
• “Jain bal diksha interview”
• In Hindi/Gujarati, e.g. “जैन बाल साधु इंटरव्यू”, “जैन बाल दीक्षा साक्षात्कार”

On JainKnowledge there is discussion related to a bal sadhu incident (“Bal sadhu ne tamacho kone maryo hato?”) which explains a historical/story context, but it is not an interview recording. You can see that here: