If you work on a purely technical framework, yes it can make sense, even if i don't see why using french would be an issue for french people. Actually, i always

If you work on a purely technical framework, yes it can make sense, even if i don't see why using french would be an issue for french people. Actually, i always liked the fact that since all the keywords are english, i can use mostly all the french language. When you work on a specialised field (for example some veterinarian software I worked in), learning the specific terms in your own language is already a lot. Learning how to translate those is adding much more complexity. It gets even worse when your specifications are written in one language (french in my example) and the software is written in another, so not re-using the syntax of the specifications. Add that most of the people will then have no understanding of what the code does without a list of translation, you end up in a quite messy situation... Yes i'm saying that a lot of colleagues were lacking basic english skills, and i don't see the issue with that. English is a nice to have to communicate with people abroad, but absolutely not necessary to live in France.