Boating License = Fishing License
Thought it would give the boating license a purpose in the short term & could be handy later. Can imagine a situation coming up where you want to restrict fishing in certain areas or regulate it somehow.
Plus a DNR officer RP sounds kinda fun & would work with hunting as well if that comes along.
Downside in combining them is the possibility of wanting to revoke the boating license for some reason and still let people legally fish, but maybe that just adds to the risk factor of doing pirate stuff or whatever comes later. Maybe commercial-scale fishing is separated from recreational fishing.
Either way I think a fishing license would create some cool RP.
Id say rename boating license to hunting / fishing license.