Therefore, lots of people DIY stuff illegally...
If you choose this route, understand that:
* The main cause of injury/death caused by electrics is fires. Fires are normally caused by improper fuses (a fuse/breaker should always be the lowest rating of any device/cable/connector downstream of it, unless that device has its own fuse), or badly made joints. Do joints properly with wago blocks or by tightening screw terminals very tight.
* The 'obvious' risk from electrics of electrocution is reduced to almost zero by installing a whole-house RCD/GFCI device. I wouldn't want to live in a house without one. And turn the power off before doing electrical work.
It is still worthwhile to understand what you're doing, and how the breakers/GFCI/Arc fault will save your ass - and why they are NOT the same thing!
I'd be interested to see tests demonstrating otherwise though.
Obviously if you are doing it to the standards, you crimp the wire first and use a torque screwdriver to tighten to the exact correct torque.
That depends what you see as near-fire ;) I recently helped out a friend whose lights had issues after she installed a more powerful fixture, turns out that the person installing it overtorqued the wire in the switch so much it nearly sheared off probably already during installation, and came completely apart when I took the switch out of the wall.
Better be safe than sorry and use Wago clips.
Strands only break when wire moves and that would be the fault of bad stress relief, not "screwing it too hard"
In many regions, doing it legally requires lots of courses and certificates. When you have invested all the time and money into getting said certificates, which is sometimes multiple years full time, you typically want to become a full time electrician to pay back the time+money investment.
That means that 'I just do electrics on the side' is becoming a thing of the past - at least in places with strict certification requirements.