Barrier to entry, if it's still like when I looked into it, which was many years ago. My friend was trying to get me into it. Sending crypto or paypal payment

Barrier to entry, if it's still like when I looked into it, which was many years ago. My friend was trying to get me into it. Sending crypto or paypal payments to random people is sketchy, and that's just to get started without mentioning the hardware/software side.