It is common practice to type for postings without extensive proofing. When I type for business, I employ spell checkers and proof-readers. I write excellent technical documentation and can schedule work to within 5% of the target date. I am slightly dyslexic. It is considered bad manners to criticize postings for spelling.
I'm 54 years old and not pretty. I can, on the other hand, outwork about six people. I make few mistakes in my software, electronics circuits, and documentation. I am well organized.
The engineering jobs are just plain disappearing. Anyone who searches the internet job sites for these jobs would notice this. There are about 150 jobs nationwide for my expertise. Five years ago there were 3,000 - 5,000.
I am looking to start my own business. Unfortunately, the best prospects are not within my line of experience, training or "network". On the other hand, I build nice furniture and make award-winning black and white photographs.
In other words, if I hired you, I would be forced to hire someone else to correct your work.
Do the words "cost avoidance" mean anything to you?