Housing costs dominate the budget
In Paris, studios commonly rent for 900 to 1,300 euros or more, while comparable places in Lyon, Toulouse, Lille or Nantes often cost 400 to 700 euros. University CROUS rooms, where available, can be far cheaper. CAF housing aid reduces the real cost for eligible students and workers, but treat it as a bonus until the first payment lands. Shared flats (colocation) are the standard way single newcomers keep housing affordable in expensive cities.