Life is full of risks, and we need to know when to take prudent risks and weigh the probability of problems. Above all, we should not react emotionally to scare headlines and dramatic, but rare hazards.
Hiring an unlicensed painter for your living room poses few risks compared to an unlicensed roofer or electrician. Furthermore, you can minimize those risks by getting referrals from a RE agent or landlord friend who uses such handymen.
The main result of a tradesman getting a contractors license is to up their price because of the implied greater security and professionalism. They may or may not give a better quality.
