Dont support the practice.
No they never get "tame" in the sense of the word, though they might tolerate handling eventually. BUT why would you want to handle a venomous snake? Even a venomoid can inflict damage.
Leave them as they were built, treat them with the RESPECT THEY DESERVE, and get some experience with hots. THEN, get a small crote or copperhead, our native species are packed with neat behaviors!
Best of luck
Lat