For every use you need a license, whether it be for yourself, for clients, or for friends and family. If you create an end product that is sold, then you need an extended license.
Although one thing to note… if you make one product and sell it to a client (or a friend or family member) then that’s not classed as selling it… you’ve been hired to create work and you can use a regular license for yourself, or to create work for a client. It’s only if that client then sells on the work when you need an extended license. So books for example… that’s when you’d need one.