Easier barrier of entry. At least, compared to Forex. Pretty sure it's gotten a bit harder compared to a few years back, but still it's a LOT easier in crypto. Plus, in general trading in both markets are pretty much just the same if someone knows what they're doing. Maybe crypto is a bit more on the volatile side but eh, pretty sure that's just more opportunities to make bigger profits in each trade instead for most traders.

And it's also comfortable to start with any amount, no matter how small.