Let me tell you clearly: Yes!
It may not matter in the short term, but it will definitely have an impact in the long term.
Pay attention to the cards
1. Do not approach the magnets
2. Do not approach the mobile phone
3. Do not let the back of the two cards Contact, magnetic strips rub against each other
Some banks and some cards have begun to use highly anti-magnetic cards, but there is no mark on the card surface. You can ask the counter when applying.
Suggestion: Change your wallet!