There are several reasons why YouTubers may not disclose their real earnings to their subscribers:

1. Privacy concerns: Some YouTubers may prefer to keep their earnings private for personal reasons, such as not wanting to attract unwanted attention or potential scams.

2. Social stigma: Talking about money can be a sensitive topic, and some YouTubers may worry about being judged by their subscribers or receiving negative comments.

3. Inconsistent earnings: Many YouTubers’ earnings can fluctuate significantly from month to month, making it difficult to provide an accurate and consistent number to their subscribers.

4. Multiple sources of income: Many YouTubers also earn money through sponsorships, brand deals, merchandise sales, and other revenue streams. It can be challenging to calculate and disclose the total amount earned from all of these sources.

5. Contractual obligations: Some YouTubers may have agreements with brands or networks that prohibit them from disclosing their earnings publicly.

Ultimately, the decision to disclose earnings is a personal one, and each YouTuber has their reasons for sharing or not sharing this information with their audience.