Why ground floor?
OP here. We have twins, and many apartment buildings in Jerusalem lack elevators. Also, I’ve found quality of life to be markedly improved once we’ve moved to a garden apartment! :-)
higher floor you go less foot traffic (noise) around your door you have, less likely your apartment to get robbed, less street noise, less insects, less air pollution and I could go on and on, basically higher you go the better, benefits end on the top floor where possibility of thieves returns, also hot in summer and possibility of leaking roof, but at least no top neighbors noise