Just curious - do employers have to pay for new employees to complete their paperwork

Not looking for legal advice. Just looking to see what others experiences are.

Contract is signed, need to fill in forms for salary (bank details), superannuation etc. My employer has made it optional to attend physically and receive guidance on completing the forms.

Should I be paid for this?

Edit: to be clear, a colleague has asked me this question. I told them no, and they’re saying I’m wrong. Brains trust is very much sharing my thinking. Thank you