What is the essential reason why the right to counsel under the 5th amendment is less restrictive on the role of the police than the right to counsel under the 6th amendment?

The right to counsel under the 5th Amendment primarily protects individuals from self-incrimination during custodial interrogations, allowing them to seek legal advice before speaking with law enforcement. In contrast, the 6th Amendment guarantees the right to counsel during critical stages of prosecution, which imposes more obligations on the police, such as ensuring that a defendant has access to legal representation once formal charges are filed. Consequently, the 5th Amendment allows police greater latitude in their interactions with suspects prior to formal charges, while the 6th Amendment more stringently limits police actions once legal proceedings have begun.