I’m waiting until my son turn 2 years old

With our first a little over 3 years and our second last sunday at 2 years. We would ask Jensen every time daddy got a hair cut if we wanted a hair cut too and he finally said yes (we liked his long hair so it was up to him when he was ready) and he did great. There was about 3 seconds during he got upset but then he was fine. Kallan balled, kicked ane screamed. That was what I wanted to avoid. But once it was done he was fine.