OK, so you can earn a lot of money, with no initial investment and in an easy way. On top of that we have to give you our ID.
It sounds to me like a scam or collaboration in something illegal.
It's most probably the "job" called "money mule". Somebody gets money (most probably dirty money) under his name and buys crypto to clear those funds.
If the authorities catch the network, the money mule name will be the first to ask this and that.
If the exchanges freeze the money, the "employers" of the money mule may or may not have understanding for that.
Since the mule shares the ID, should the mule resign from the job, the ID can be used to set up fake accounts on various exchanges and money platforms, even to take a small loan, as many banks allow for this.
When someone offers you "a lot of money" for a very simple job that doesn't require any skills, investment, or time, just a little effort and your ID, you can be sure it's some illegal shit.
If I had a legit exchange business, and wanted another account to double my limits, I'd ask someone from my family to make one for me and give me the login. If this was 100% legit, they would have nothing to worry. I'd get my wife to set one up and my father to get me another one, and I'd have 3x the limit with no need to confirm their identity and no risk that they'd steal from me.