For anything larger than a small, informal reception, a wedding seating plan is likely to make a significant difference to the success of your reception. A wedding seating plan will almost certainly help things run more smoothly.
Guests are saved from the mad panic of trying to find a seat on a table with their friends/family, and you can place people where they’ll be happiest!
The wedding meal may last for 2-3 hours and is a significant part of the day. If your guests are sitting with people they get along with, it will make a big difference to their enjoyment of the day.