We must be careful when the site that we want to visit and always make sure that is safe for us. We don't know which one will steal our details so we must be aware of anything that look suspicious.
When we are only alert to something that we consider suspicious, there is a possibility that we will be negligent in some things. But when we discipline ourselves not to approach suspicious things, there is a greater chance that we will not approach scammers or hackers.
As you said, be careful when visiting sites. If we are used to visiting certain sites, whether gambling or familiar exchanges, there is actually no reason for us to visit other sites. So why do we surf looking for new things that are risky?