Is it strictly necessary to have an insurance or some sort, being a carpenter / mason?

I have a question for carpenters. Share please your opinion about worm drive saw, is it easy to use with one hand? I am thinking of buying Makita 5007F 7-1/4-Inch Circular Saw. Is it heavy, well balanced etc? Can you compare it with sidewinder? I am using it now. Or you would recommend both for different types of work?

Carpenters are skilled workers and are expected to be very proficient in their fields. This involves them learning things like:
•    Mathematics
•    Technology
•    Fine Woodwork
•    Art
•    Carpentry and Joinery
•    Machine Woodworking
•    Wood Occupations
Gaining an apprenticeship is an ideal way to start your career as a Carpenter. You would be able to work with more experienced and skilled carpenters who can guide you. Also, you would be able to earn an income. Many apprentices start while they are in high school. Certifications in this area include the GCSE, BTEC, City and Guild, NVQ, and SVQ.

• Being methodical and security conscious
• Being physically capable of performing the required functions
• Being respectful and well mannered
• Great sense of balance and handling high levels
• Project management and time management
• Stress management and delivering accurate results
• Teamwork
• Understanding drawings, plans and written or spoken instructions
• Understanding mathematical and numerical data