Hello , 
Thanks to tips from this board, it was recommended that for a single traveler , 1st trip to Paris, that I take a cab from CDG to my hotel.  I am now wondering if it's safe/acceptable/ to seek to share a cab with other travelers waiting for a taxi ? 
I've never taken a cab before, but I've heard of people sharing a cab. I assume this would cut the cost in half for both travelers. I'm imagining a couple or another single looking to get to Central Paris, and offering to share.  Would this be advisable or just a stupid thing to do ?
Thanks !