Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Purpose of having good credit when you are well-off?
Because even if you won the lottery, without at least some credit history you will have trouble renting cars and hotel rooms. I learned about the importance, and limitations of credit history when, in the 90's, I switched from using credit cards to doing everything with a debit card and checks purely for convenience. Eventually, my unused credit cards were not renewed. At that point in my life I had saved a lot and had high liquidity. I even bought new autos every 5 years with cash. Then, last decade, I found it increasingly hard to rent cars and sometimes even a hotel rooms with a debit card even though I would say they could precharge whatever they thought necessary to cover any expenses I might run. I started investigating why and found out that hotels and car rentals saw having a credit card as a proxy for low risk that you would damage the car or hotel room and not pay. So then I researched credit cards, credit reports, and how they worked. They have nothing about any savings, investments, or bank accounts you have. I had no idea this was the case. And, since I hadn't had cards or bought anything on credit in over 10 years there were no records in my credit files. Old, closed accounts had fallen off after 10 years. So, I opened a couple of secured credit cards with the highest security deposit allowed. They unsecured after a year or so. Then, I added several rewards cards. I use them instead of a debit card and always pay in full and they provide some cash back so I save money compared to just using a debit card. After 4 years my credit score has gone to 800+ even though I have never carried any debt and use the cards as if they were debit cards. I was very foolish to have stopped using credit cards 20 years ago but just had no idea of the importance of an established credit history. And note that establishing a great credit history does not require that you borrow money or take out loans for anything. just get credit cards and pay them in full each month.