What you want to ask is the reason why a jewelry store hasn't turned positive after three months' internship. The reason is insufficient internship and poor performance.

1. Insufficient internship period. The internship period takes 3-6 months. Shops need to observe interns for a longer time to assess whether they are suitable for work.

2. Poor performance: If the intern does not perform well and does not meet the requirements of the store, then the store will not turn him into a full member. Shops need employees with good performance.