The tutorial provides step-by-step instructions on implementing form validation in Vue.js applications using the Vuelidate library, emphasizing the importance of validating input fields for a seamless customer experience. It highlights the necessity of conducting validation on both client and server sides and explains how Vuelidate, a lightweight model-based library, can be integrated into Vue applications to handle validation rules efficiently. The tutorial walks through setting up a Vue environment, including installing necessary tools like Node.js, Vue CLI, and Vuelidate, and demonstrates creating a simple form with validation rules for fields such as name, password, and age. It guides users on using Vue's graphical user interface to manage dependencies and run applications, while also introducing the v-model directive and $v selector for binding input data and building validation logic. The tutorial concludes by showing the simplicity of using Vuelidate for handling basic form input validation and hints at future discussions on more advanced topics like handling form submissions and password validations.