In my church group of friends and of the family members who have gotten married over the last 5-8 years, no one ever does table assignments. You just walk in, grab a table, and then the people you know join you or you end up just splitting up amongst tables as everyone's friends arrive. I'd never been to a wedding with table assignments until my school friends started getting married in the last 2 years. They will only comprise about 10% of my guest list though; my family and church group will be the majority. Do you think I absolutely need table assignments? The one thing I am worried about is the folks who would only know 3-4 other people there (because they're what remains of my friends from a past church/school) having to sit awkwardly around and hope other people they know show up. It'd make more sense to assign them all to the same table; but then what if somebody doesn't show, and you're back to a couple sitting awkwardly by themselves at a table with no one else.