Your Sims will automatically wear formal wear at wedding and pre wedding partys. For family gathering, there's also an alternate version available where they'll choose party wear. Bach parties remain untouched as they are already set to the appropriate party wear.
Another remake, so if you've placed the older files in lots you'll have to replaced them again, sorry about that. I bet the candles still smell nice, though! I haven't smelled them, myself, but my Sim likes them! • Solid Candles – TEXTURES + Tuning, which are required for these objects • Large Solid Candles 1-3 • Medium Solid Candles 1-3 • Small Solid Candles 1-3