Women Davening on Train

I ride the train daily and I started noticing this more and more. Although it is complementary that girls make the effort to daven everyday, I don’t believe this is proper. The train is filled with immorally dressed people as well as other filth, and is definitely not a place for tefillah. If a girl does not have time to daven at home (it shouldn’t be that hard for the single girls to wake up a few minutes earlier to daven) then maybe they shouldn’t daven at all as that is why they are not obligated in Mitzvos Asey Shehazman Grama.