Crypto Barriers

Hi guys I'm doing a business research at my college and I decided to study something I like. I would appreciate if I could get some answers here from the community, The main question would be what did you thought it was difficult or hard when you joined the crypto space ?

For me was to understand the transaction and as I used etheum the bridges got me confused and I ended up sending funds to the the wrong chain multiple times... What was it for you ? Was it to storage wallets safe, Bridges? Being hacked?

It can be anything appears in your mind.