Well, back when common law first segregated felonies from misdemeanors, there were far fewer felonious crimes to be aware of. Which made it reasonable to expect that it could be commonly known that additional, life-long penalties could also be incurred.
Poignant to recall, too, that these used to be crimes less than the "justice high and low" the nobility could enforce by their own hand. Poaching, robbery, assualts on the upper classes were all capitol crimes. The risk was known to one and all.
Now that ther eare thousands of felonies, some intertwined with misdemeanors, I am of the growing belief that a case can be made that no reasonable man can know enough of the 9-10,000 laws, rules, and ordinances each and every one of us are expected to know and obey, to actually be able to do so.
Which should be a very important issue here in our community. A majority of the the 10 or 20,000 "gun laws" are felonies. How easy would it be for one of "us" to inadvertently lose our gun ownership rights?
The old "proscriptions" existed in another time and place. One before plea bargaining, one before redundant regulations. One before a justice system so bogged down in a gordian knot of its own making, that expediency would become a virtue even over logic, rhyme or reason.