I’ve tried the band aids and it doesn’t last long he starts pulling onto my shirt and what’s a milk that would be good ? He doesn’t like full cream.
At 3 years old he is definitely old enough to understand if you just explain to him that he’s a big boy now and booby milk is for babies.
Cold turkey. Put bandaids over your nipples and tell him they are broken. Give open cups or straw/spill proof cup of choice of milk or water instead and still offer comfort/cuddles. At 3 years old there is no need to introduce a bottle.