$300 to Attend Bridal Shower

Is $300 per person a fair price to attend a bridal shower? ‘Good Morning America’ reported on a woman who revealed her cousin, a bride, sent invitations specifying a $300 per person fee to attend her bridal shower.

Source: https://abcnews.go.com/GMA/Living/charge-guests-bridal-shower-reddit-post-stirs-debate/story?id=111692505