There are several useful benefits of using a privacy laws compliant Cookie Banner. First, you could want to avoid privacy laws violations and fines. Violating CCPA or VCDPA can seek civil penalties from $2500 to $7500 for each case of the law violation, and violating GDPR could lead to fines of millions of euros.
Second, Cookie Consent management through the Cookie Banner encourages website users' trust. Users are becoming more aware of privacy and their personal data rights. Showing that you take their privacy rights seriously increases users' trust in your website and your products or services. Users' trust inclines people to provide more consent to data usage since you are transparent about data collection and purposes of use. More data gives a competitive advantage when you get more possibilities for marketing, as well as more ad revenue.