Do you need a line of credit to rent a house?
Yes ... or a co-signer will be required.
To rent a house you either need a good credit score or no credit at all. Typically students or young people usually have no credit and are fine getting a rental. Of course if you do not have any credit you usually have to have someone co-sign on your lease. You can easily get good credit by simply getting a gas card or any other card that you can quickly or automatically pay off.
In most cases you will need to be at least 21 and havve a vald major credit card for jet ski rental. It is possible to have a parent or guardian rent it for you in some cases. You need to be at least 18 to rent a jet ski in Florida. Requiring a credit card will depend upon who is renting you the jet ski.