Hey Daniel! Hope you're doing well! I think that it depends on their English skills and their communication skills also, like, if he/she is an introvert or extrovert person yk? I'm a B1+ (proud of myself lol) and I can talk with someone for like 40 minutes, then I get tired I guess hahahahahaha Anyways, good night/morning/afternoon or anything 😂

Oyeee vi tu video y guau, tu voz cantante es súper bien. No creo que entienda tu pregunta exactamente. Tal vez , cuánto tiempo tarda alguien en aprender un idioma?