> Can't you just decide to use subset of the language? No, you can't. Not in the long run, at least. You will have to use libraries that have chosen a differen

> Can't you just decide to use subset of the language? No, you can't. Not in the long run, at least. You will have to use libraries that have chosen a different subset, new people will join your team, things will get sloppy as the company grows, etc. Committing to a subset of the language is not free, it's hard and it's a lot of work. And for what?