Hey there,
Bics are great for first boards in some peoples opinions, not in other peoples. I've never ridden a Bic so what i tell you is just hearsay, but generally they are pretty tough and hard to ding (damage) which is good if you are a beginner cos as well as lots of embarassing wipeouts you will also do stupid stuff like drop your board(trust me im speaking from experience here

Some people argue that they are not as manouverable as a fibreglass board, but this in unlikely to be a problem for some time.
I got a fibreglass minimal as my first and i do like it, but in some ways i wish i had got a bic, less street cred (but when your as crap as me thats not something your familiar with anyway

) but just as good and probs a bit cheaper.
If you can try both before you buy.
Good luck and dont believe all shop assistants, they are not all as helpful as they seem and sometimes will try and sell you whatever they feel like, not whats really best for you.
Libs
Ps if you do a search on this forum for 'bics' you should come up with a few answers