Omg Calvin Harris is almost 2 decades older than me. How did he grow that much older?

I used to always think that DJ Calvin Harris is closer to my age but he is actually 39 now. I turned 22 just 4 weeks ago so he is 17 years older than me which is almost 2 decades. One thing always surprised me is that is 6'5 or 6'6 and I am 5'8 1/2 almost 5'9 so he would tower over me badly but he is much older than me too. I thought he is in his late 20s now. I used to listen to his songs in 2015 and 2016 and he was already in his early 30s that time.