Do I have to be licensed?

I want to advertise my non-medical services on caring mostly for the seniors. My services will include mostly home companionship,errands,etc. I have a background check done on myself, health & physical requirements needed in this line of work. I want to get some business card with my name and contact infos. But do I need to belicensed for this? In the future, I want to form my own company doing the same thing but at this time I just want to do this myself. I will be doing this in California.