Is there a way to get a credit score(good credit score), w/out actually having and using a credit card?

i have a credit card, but i really don’t want one anymore because of the interest. i don’t even really need it. the only reason why i got one is because my friends told me that is the only way you actually build up credit and you need good credit to purchase things in the future like a house or a car. but i’m 21 i don’t plan on purchasing a house for at least 10 years…what should i do?

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