What reasons are there to switch?
You may have an overdraft that you’re paying high fees on. If you’re tired of incurring charges, you might simply want to review your options.
If another bank will give you an interest-free overdraft as a ‘signing on’ bonus, then it could make good sense for you to switch bank accounts. Although you will need to go through a credit check and be accepted by the new bank to get this offer so keep this in mind. An overdraft should only be seen as a last resort though, not for non-essential spending.