William: what do you want? NetBSD does not come with a tool like FreeBSD's adduser. FreeBSD's adduser is an interactive tool that prompts for each detail for creating one or more users.
NetBSD's useradd (aka "user add") tool is like FreeBSD's pw(8) "pw useradd" tool. (The details are passed on the command line.) (From a quick look I don't see an interactive adduser like tool in pkgsrc. It would be a nice beginner project.)