Welcome. Type 1's will be advised they need insulin straight away as part of their treatment. Because their bodies can't make insulin anymore, they need to get the right amount to keep their blood sugar levels in a healthy range. That said, some have been misdiagnosed in the beginning, but usually ended up with life-threatening DKA after their honeymoon period has ended. Lada, type 1.5 which you have listed in your signature, have slower onset diabetes but will end up on insulin eventually.