Sharing a card lets you split the membership fee and save a fair bit of money.
Tips
usage
Part of the modern 拼- (“to pool / share-purchase”) family alongside 拼车 (pīnchē, ride-share), 拼单 (pīndān, group order), and 拼团 (pīntuán, group buy). All express the urban Chinese habit of splitting costs with strangers or coworkers via apps.