Having a good credit score is enormously important in the USA because without it, it is not possible to take out loans, e.g., to buy an apartment or a car.
In addition, a good credit score is necessary to obtain credit cards and certain contracts.
Your credit history indicates how reliably you have met your financial obligations in the past and gives your potential lender peace of mind.
However, you can still build up your credit history quickly with a few tricks:

Make installment payments forsmaller purchases (e.g., household appliances).

Use a secured credit card (credit card with a balance).

Apply for an American Express credit card in your home country.