BART is a safe operation, so that will be okay. I have used BART as early as 6 AM and as late as midnight and haven t experience anything out of the ordinary.To provide informed advice, however, we need to know which station you will be using and how you will be getting there. BART serves a wide variety of neighborhoods, and some are safer than others.
I think it should be fine. I don t think that driving that early in the morning would be any safer, actually.
for the most part you re safe, there are also other commuters. also depends which station you re waiting at
bart isnt so great during late/early hours... ive seen tons of people get mugged and beaten on bart.. i prefer to drive now