By Charlie Simmons for The Mercury News - Silicon Valley is the engine of the rapidly growing gig-economy. Consumers love the convenience of having goods and services delivered right to their door at the push of a button. Many workers are enjoying the benefits of making their own hours and minimal corporate oversight. But there’s one big problem: many of these workers are classified as 1099 contractors, rather than employees. The 1099 system gives workers the flexibility to fully choose how and when they work, but it also demands very little from companies, who do not have to cover transportation costs, offer paid vacation, or contribute into 401(k) accounts. That’s the perfect system for Silicon Valley’s tech start-ups. Most of them are in aggressive growth stages and are trying to expand to new cities, recruit new workers and bring on new customers. This way, they only pay workers for the actual time they spend on their service. While debate about the merits of the gig-economy continues, it’s clear that it’s here to stay. If we are shifting to a system of self-employment, we need to rethink how we deliver crucial worker protections and services that our nation’s labor groups have fought for and won, including overtime protections, weekends, redress from unjust dismissal, and — most importantly — expanded and improved health insurance.