I would say there is a career as long you can have a wide range of material, and be able to play what your audience asks for. I know lots of musicians in Scotland who make a living out of it. Weddings & dinner dances are a great source of income, and also playing for general dancing is always a good earner. Being able to supply cds is also a great way of topping up your fee. Present yourself well, always start on time and finish later if you're asked. NEVER give up a gig for a better paid one as that's just asking for trouble. Good dress sense always helps. Nothing's worse than seeing a scruffy musician