Hi Sarcy,
Thank you for bringing this to our attention, and interested in whether the Galaxy A12 has a mobile hotspot. In line with this, the device supports the mobile hotspot feature that uses your data plan to create a Wi-Fi network that multiple devices can use.
For more information, you may visit the user manual on Pages 98-100:
https://downloadcenter.samsung.com/content/UM/202107/20210701023025700/SAM_A125_EN_UM_R_11.0_032921_FINAL_AC.pdf
Should you need more assistance, you may reach us via the following for immediate support:
1. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
2. Facebook Messenger: http://m.me/samsungsupport
3. Twitter: https://twitter.com/messages/compose?recepient_ id=18768513
Reference Number: 1144305440
Thank you for choosing Samsung. Have a great day!
^Chrystel