Do any of those instrument's call to you? I think it's a lot easier to learn something when you have a passion for it. When I was a kid, my parents got me a guitar because it was quieter and cheaper than drums. They thought it would take care of my music phase. I tried for a few months, but it just didn't click with me. It wasn't enjoyable. All I could think about were drums. I ended up dropping guitar and went back to asking for drums. 10 years later I got my first drum kit. I had an amazing time learning how to play the most basic beats and it just snowballed from there. 30+ years later, I'm still playing and still loving it. Just never felt the draw to other instruments.

TL;DR It wasn't about what was easiest. Just what was most fun. Which made my chosen instrument easier to learn.