Well actually..
Yes, you can cut yourself with a soda tab. The edge of a soda can tab, as well as the sharp metal edge left on the can after the tab breaks off, can cause cuts to fingers or skin [1.4, 1.6].
Here are the details regarding this risk:
Historical Context: Prior to 1975, cans used "ring pull tabs" that were notorious for being sharp enough to cut fingers or toes.
Modern Risk: While modern tabs are generally designed to stay attached to the can (stay-on tabs), if they break off, they still possess a sharp edge [1.10].
Potential Injuries: The sharp edges can cause cuts if the tab breaks off or if a person accidentally sticks their finger into the opening of the can [1.6, 1.10].
Health Warning: Because these are sharp metal objects, cuts can become infected.
What to do if you cut yourself:
Stop the bleeding: Apply direct, gentle pressure with a clean cloth or bandage.
Clean the wound: Rinse with water for 5 to 10 minutes.
Apply ointment: Use an antibacterial ointment.
Monitor for infection: Watch for signs of infection in the following days.
(This was copied from Gemini)
TLDR, You can technically cut yourself with a soda tab, but it's not that deadly. (Sometimes cutting yourself CAN be deadly, such as hitting a vein or having to get stitches.)