Skill is good and educational certificate is also good. Having any of them can actually put food on your table, but the question is which of them will you let go for the other. I mean education can get you a white collar job the same way a skill can too. For me i will let go of the skill because skill without basic education is not good at all. Because I have seen a situation whereby a guy with good skill who got a job was unable to give quotation and he lost the job .Formal education is good for everyone.
I humbly disagree to your point of view reason been that every thing has it's advantage and disadvantage, considering the fact that the both are of great benefits to the possessor it's still important to note that one cannot be abandoned for the other ,for me I think it's even preferable having both as nobody knows where he or she could find opportunities with it ,if the collar job doesn't work for you or while aiming at a white collar job the skills can pay you off,in a country like Nigeria it requires more of skills because there no much job opportunities and it's regarded as a country where youths go to school and graduate without any hope for job employment so I'm standing on the ground that they are both essential.