Many people find a small handful of cards to be the sweet spot. Data from Experian show that the average American holds between three and four credit cards.
For one thing, managing a mix of credit and debit cards can be a logistical burden. Keeping track of it all gets more difficult the more accounts you add.
Rather than a one-size-fits-all number of credit cards that everyone should stick to, it is instead a more individual process to determine the sweet spot for your finances.