Dealers can deal with that easily, this is often how they operate now, they don't carry big bags of stuff in their pockets usually they have nothing if police will do quick search. With that approach you will mostly catch users.
If I would be getting these naive suggestions of yours in this thread from my 6 year old son, I could respect them. But adults in 2026 should definitely know better and know a bit of history to reflect on.
And if there is a life sentence on hard drugs who would possibly have them on them?
You could also make it the 3rd offense or something, not that difficult.