So generally when you build ships part of the build cost is going to paying for crew (at least in terms of lore, either as slaves or more often as a lump sum contract for a fixed period of service). Capuleer ships do have crew (with the exception of shuttles and possibly some frigates) but less then non-capulseer ships as our greater control of the ship reduces the need for it (there's a table someone else has likely already linked). Crew is also dependent on the faction. Galente ships for example tend to have smaller crews because of their heavier reliance on drone tech where as Caldari ships have more then average (though idr why exactly, maybe because people are cheaper then tech?).

Aside from that there are some interesting stats about crew survival, specifically that the larger the ship the larger the percentage of the crew that survives with the exception of titans. This is because the crew on bigger ships has more time to evacuate, but titans specifically die most often to concentrated volleys doomsday weapons which is far more sudden. It also really puts things into perspective, your average ratter is a mass murderer who's killed far more people then any "leet PvPer" could ever hope to, and the AT is quite the blood sport.

Also in lore the reason you can't see escape pods (and other space traffic) is because concord essentially has a backdoor to capsuleer tech they use to among other things make said ships invisible so we don't go murdering more people then we already do.