Both have some positive and negative impact on using or saving to you. Cash is relatively better than Bitcoin Because of availability and acceptability at everywhere. But in terms of security cash is not better than Bitcoin. Not only that but also in terms of profit Bitcoin always better than Cash. So both can be a great source of money in specific field.
Yes we can use cash anywhere, and there is no restriction on cash usage. But in term of security, i thin cash is better than bitcoin. Any fraud happen in cash transaction we have a source to get back our cash, but in bitcoins, we don't have any option. Once it's gone that's, it will never come back. And saving wise yes Bitcoin will give more profit than cash.