Source? I do not think any person reviewing people’s credit history would rate people higher for having 10 low barrier to entry revolving credit accounts rather than say 5 or even 3.
Different types of credit are weighted differently, so mortgage and auto and student and revolving credit card are not all seen the same, and I would not believe “more is better”, especially just for revolving credit lines for credit cards.
I recall seeing this in Credit Karma or maybe Experian's FreeCreditScore at one point (that you have to have 20 or 21 accounts for the best score), but cannot find it right now. I think it's a relatively well known number.
Assume you have a card for restaurants, one of travel, one for grocery’s, one for gas, one for entertainment and one catch all.
That’s 6. What else do you have a dedicated card for? 14 cards with sign up bonuses? All at the same time, each with minimum spending requirements to earn that bonus?
Let’s add some more. I have one card that pays $25 every quarter that I pay off in full every month so I use it once every month. I have a card with rotating categories. Even with multiple rotating categories I don’t see this going up past 12 cards.
Sure, why do I need my savings account in my apple pay? Why did I put the plastic savings card into my physical wallet? Because that's where all of my other plastic cards are.
"The digital wallet should be able to hold all of my cards, even the ones I use infrequently" would certainly be my expectation.
It's actually a really good idea, because it's a different account number they gets stored on the device, so, even if your hotel card is compromised because of the hotel leak, the copy in Google Pay will remain active and available. So, I could use it right away on the once-every-two-years bonus category without any extra hassle.
Here having no credit cards is best. Because not having to loan shows having the ability of being responsible financially.
Note: here in Europe we get no rewards or anything on credit cards. It's viewed more as a liability, not a virtue.
In fact my credit cards cost money in stamp duty, they don't ever gain me any.
So say if I spend $3000 a month, and pay it off every month in full, and my total credit limit is $10,000, they will ding me regardless of my payment history, because my utilization (30%+) is considered high. So if I want to maximize my credit score, it behooves me to get more cards (easiest way to increase total credit), and spread out the payments among them.