When Roger first travelled back in time it was made quite clear that he is not built for the 18th century.
As an academic, working and toiling for his food and shelter is not something he is good at.
This point of contention – along with a number of other things – has produced some tragic arguments between Roger and Jamie.
Going into season five Roger and Brianna are now living with Jamie and Claire Fraser (Caitriona Balfe).
source: express.co.uk