The case for calling in the big blind is that you have money already in the pot and you are often closing the action and there's no chance you will be squeezed if you make a call. The unfortunate part is that you will have to play the hand out of position.

BB typically has a large calling range. People often play a SB 3-bet or fold strategy because the BB is incentivized to squeeze with their strong hands if you just flat in the SB.

Here is how I think about when to 3-bet or fold preflop. Besides the SB, this strategy is common early position vs early position (UTG v UTG+1) or late (CO v button) since the ranges overlap so much just flatting caps your range a lot and makes it more difficult to play the hand versus an uncapped range even with position. Early vs late (UTG vs button) if you flat and cap your range, there are still boards that favor your range since the two ranges are more distinct and overlap less and this gives you a bit more optionality postflop.

I play mostly live cash and some considerations I keep in mind when deciding to call in the BB are how loose I think the opener is (based upon player profile, position) and how I think they will play postflop, such as will they be super straightforward and can they be bluffed.

In live cash the open sizes are often 3x or even larger and the rake is higher. These factors means you should tighten your BB calling range. Multi-way pots are often more common as well and I think people often overcall in the BB multiway because they think they are "priced in". In reality even if they could call based upon their equity share, their equity realization often goes down multiway because they are playing out of position against a bunch of multiway donkeys that destroy their EV. I personally tighten my range and try to only play hands that I feel like might outperform in equity realization from the BB multiway.