Customs and etiquette change over time, but this mom is pretty sure this party host is being super tacky. There are all types of parties, from simple to extravagant. For smaller events, it can be great to host your family and friends at your home for a backyard BBQ, which is casual and cost effective. Other people love to spend big money on their kids parties by renting entertainers or bouncy houses, or hosting the event at a restaurant or play zone. As a kid, you have a wonderful time regardle…