i agree with hopewell, depending on a couple’s financial status, income, job security etc, putting some things on credit rather than spending savings can certaintly work out. it sounds however that op is banking on the guests cash gifts to help make the payments. i would never imagine getting such generous gifts from my family and friends.
the tricky thing about credit is if you have it, you spend it, and it makes it easier to spend more than you need to or you would otherwise.
if you have for example $2000 in the bank and you get a $2000 credit card with 0%apr for like a year, then yes, spend the credit card instead of the savings. but not both. then you can divide the $2000 savings into 12 payments over the year. this will build credit, give a little breathing room for heaven forbid, emergencies etc but you really arent spending money you dont have. then if you get cash gifts, you can decide to use them to pay off debt sooner than originally planned.
pp made a great point though, to have a $5000 wedding “paid for by cash gifts”, you would have to have about 500 guests. and it is extremely rare for weddings to be less than 5k with very small guest lists. just not practical.
i personally am using a combination of mostly cash and some credit for our wedding. we are chosing to have our wedding right after our home renovations will be finished. when they are done though, we will be living rent free and the ONLY bills we will have are food/personal items and debt. (no electric, cable, water, laundry, etc). it is our priority to wed this year and spend next year paying off all of our debt rather than wait a year.
if we had rent and utilities to pay (or if we wanted to buy a house) etc, we would have to wait, or have a much smaller affordable wedding. our income will allow us to pay off most of our overall debt our first year married.
if you decide that your regular life budget can comfertably afford a loan payment, (regardless of gifts) and its more important to you and ur fi to wed this year, then go for it. people make that choice all the time when they spend credit cards for things they could wait for.
sorry this is long, but one last note, however negative. how terrible would it be if you went into debt to afford this day and after much of that money is spent, the engagement is called off or something crazy happens that prevents the wedding this year?