Yeah after the curriculum, the students transition to using typescript. It is a natural progression towards wanting to type your function arguments and return values for clarity and consistency.

If you are targeting people learning programming, it really does not matter. TypeScript really makes sense to those who were already comfortable with a strongly typed language (eg Java, C#) before learning JS.

as they learn, I want them to build reliable open source products that will be useful and maintainable after they find jobs and leave. Since less experienced engineers are prone to making mistakes, TypeScript have been really helpful in maintaining code quality. I think its a win win for their growth and for code quality.