It can be considered rude to attend a party or event without consulting other family members first, especially if the invitation was extended to the entire family. In such situations, it is generally expected that all members of the family will be informed and have the opportunity to RSVP or decline the invitation together.
By going to the party without discussing it with the other family members, you risk creating misunderstandings, hurt feelings, or potential conflicts within the family. It's essential to consider the feelings and preferences of everyone involved and ensure that decisions are made collectively.
To avoid any potential issues, it's best to communicate openly with your family members about the invitation and discuss whether everyone can attend or if there are any scheduling conflicts or other reasons preventing some family members from participating. If there are any concerns or disagreements, it's essential to address them respectfully and find a solution that works for everyone involved. Open communication and consideration for each other's feelings are key to maintaining healthy family relationships.