Floor to ceiling Jalousie Windows

Are Jalousie windows made with safety glass? Buyer has four small children, recommend installing some railings.

Did you check a label ? There should be a marking in a corner somewhere if they are safety glass

https://www.nachi.org/safety-glass-for-inspectors.htm
http://www.mcgarryandmadsen.com/inspection/Blog/Entries/2015/10/25_How_can_I_tell_if_a_window_or_glass_door_is_safety_glass.html

some info

Yes, I looked but couldn’t find anything. Very old windows aluminum frames were oxidized making them tough to open.

Not likely if your not sure recommend guards , well i do anyway