Without SSL encryption, most of your customers simply buy somewhere else. You can not provide security in the data provided by your customers, without an SSL certificate.
By having a reliable SSL certificate, our data is encrypted so we can ensure that no one can read your content. All this leads us to understand, that an SSL certificate is the secure transmission of information over the Internet, and thus confirm that the data are free from unwanted persons.
An SSL certificate serves to provide security for the visitor to your site, a way to tell your customers that the site is authentic, real, and trusted to enter personal data.
A security tool. The green padlock and HTTPS displayed in the address bar of the browsers are signals to the user that your site is secure and that there is no fraud.