I'll be in Paris for two weeks on a course(it's my first international trip,so I'm very clueless),I'll be using the metro from the course's centre to my apartment. I've got zero experience in using public transports,so my questions are(I know they're very stupid,so excuse me):
1-Is the Paris metro safe at any time of the day?,what should I watch out for?
2-What is overall the least crowded time to use it?
3-One ticket is one way or a return?
4-Do you recommend buying a carnet or a navigo cart(I'll be taking the metro for 5 days a week in this period of two weeks),if i get a carnet is it time restricted,or can i use any time I'd like?
5-I'll be mostly going from line 14 and line 2,from my searches(the host didn't mention this line),I can take line 6 as a direct line between them,is that correct?
Unrelated question:but do dollars work fine as euros,or it will be somewhat troubling to use them?Edited: 06 August 2018, 23:46