I think Jean-Lill meant that Cabin Crew training can take five weeks whereas nurses take... a little longer.
SLF? In Ops (as I believe in most of aviation) we use the term "Pax" as an abbreviation of "Passengers".
"SLF" is funny the first few times, but it has the same syllable count as just saying "Passengers" so becomes pretty redundant as a TLA.
(Just for the benefit of anyone from outside the industry that thinks they're overhearing themselves described as "Pratts". As I believe some journalist or other did once)
Going back to the old perennial
"Should pilots get paid more than Nurses?" question:
Yes. Nurse messes up, one person dies. Pilot messes up, several hundred die.