What's the point of using TypeScript if you type all of your code with `any` or worst part is you don't provide any types!?

P.S
If you're anti-typescript or any static linting tool, I know this will not prevent any runtime errors, but this is part of the testing/code quality. My teammates do not care for quality, and I'm tired of it.

TL;DR
A "friend" is a tech fraud. Faking his resume as a software engineer! Only interested on the salary. This is unfair to all of us putting the hours of effort/practice just to improve our craft! 😠😤

I have a "friend" who is faking his resume, putting fake experiences and putting jargons not even related to tech just to make himself smart. He's using his customer service rep experience to talk confidently. His resume fcking long, 3 pages of fakery. I can't help, but to laugh when he sent it to me.

He has a tech degree, but worked in a BPO industry for 4 years, then recently, he quit. He got jealous with the lucrative software development industry and he wants to relearn coding, as a friend and I like sharing my knowledge, I agreed to guide him in the process.

After 3 moths, he got his first job, but unfortunately he got fired after two weeks because he commited sensitive data to the remote repo.

Then after a month, he got his second job and worked there for 6 months, he still don't know what his doing and always ask me solutions when he is stuck.

He got his 3rd job, remote work with high compensation. Fast forward after 3 months, he only got 1 month of salary, the other 2 wasn't given for unknown reason, my best guess is the company noticed his experience on paper does not match on real life.

Currently, he's working on another remote work with same compensation as before, and he still asks me super simple questions from time to time.

This is so unfair to all the devs who truly deserves the opportunity.

Context:
I recently joined a team and we are working on a fairly large mobile app using RN, they started a month ago. And I noticed, they don't have any fucking tests and static typings like Typescript.

I have this pretentious team leader that acts like he's the BeSt dEveLopEr in ThE woRld, and act like he always know what he's doing. But in reality, he code like crap, the formatting is shit because the ESLint config is not working, he's not even aware of it until I've fixed it. He's using every BAD Practice available, unused variables and imports are scattered everywhere, etc. And the directory structure is crap and no consistency.

How can I convince this ignorant mofo to use tests and typescript? He believes that adding those will take us longer and cost more money to the client, based on my experience, this is not the case, it's only slow on the first 2 weeks and it is worth it in the long run.