You will find out that working on most C&V bikes, at least from the late 70's and up, will require allen head wrenches (metric). It is something that a "car oriented" tool set usually do not have.
You can usually manage without a lot of proprietary bike tools for a while if you are just doing very simple maintenence and repairs, but eventually, you should gradually accumulate the special bike tools as you work on more bikes, as it will make the work much easier and you will get better results. Going through tool catalogues like the ones from Park Tools will help you discover what these special tools are and what they are for.