u/cutepicspls

I was recently invited to the wedding of my client’s son and I’m wondering about the etiquette around declining versus attending. This is a client of mine, I like him very much and occasionally take his team out to dinner. When he learned that I don’t usually take my clients out, he invited me to his son’s upcoming wedding. I don’t know if he extended this offer out of a sense of reciprocity. I do not know his son or the fiancée. I’m happy to attend but don’t want to be an added expense out of sense of obligation. Is it common in Punjabi culture to extend casual invites and is it common to decline such invitations? I don’t want to cause any ill feelings. I am not Punjabi so I apologize for the ignorance.