BST is the way to go for your first straight.
Safety? Well, after all you do have a very sharp blade on your face and neck, but I've said before that the safest place for a straight razor is on your face or put away. There are lots of cut fingers out there!
About the only thing I concern myself with is some type of starteling event. My wife once stuck something in her eye while putting her eye make-up on and let out a squak. Fortunately I didn't have the razor on my face at that moment.
Shave alone. Keep the wife and kids away. Shut the door. I've even taken the phone off the hook.
Dedicated to the pursuit of Life, Liberty, and Trout.