Entry to Lounge through DreamFolks generated QR Code

[blubber]

I have the card added in my account. Can I delete the card from my account and add it to my parents account?

Yes you can

why need to re add to another account just generate QR code and crop the name and share the code with them

Specficially for cases where the lounge may ask to verify the name against your boarding pass. It's not common, but it happens.