Every single web app and internet-connected mobile app handles PII (IP address, geolocation data, and email address all qualify). Unless it's particularly protected, like health info or storing banking info, you'll probably be OK to learn how to handle it on your own to get a product to market. You also need to understand the impact GDPR, CCPA, and app store requirements have on what you're building. Then there's the legal side of actually creating the company itself, plus concerns around copyright, trademark, and patents if applicable. At the end of the day, you're going to have to learn some legal stuff to succeed as a founder.