In Florida, to keep venomous, you must complete 1000 hours of training with the species you want to own, show you have proper facilities, etc.
I think a lot of venomous are beautiful animals and for many the reason to keep them are the same reasons to keep any snake.
Tailing can be a very responsible method of needed handling(i.e. when a snake MUST be handled) IF the keeper is experienced.
Any handling is a risk. Many keepers even have a cage set up to block the snake in one part so the other empty part can be cleaned, etc. So no handling at all for regular duties.