Hotel Roseville

Me And A Friend Are Going On A Small Road Trip And We'll Be Needing Lodging As We Go West Through CA. Because I Am 18, I Should Be Able To Pay For It, But I Hear You Have To Pay With A Credit Card. I Have A Debit Card With Sufficient Funds. Is It Possible They Would Accept That? Also For Like A Motel 6 Or Holiday Inn, How Old Would You Need To Be?