Hi there, welcome to the forums (from the west coast

)
To answer your question - I'd say the issue isn't so much if the task falls outside the realm of virtual assistance as if it falls outside the realm of what you choose to offer among your services. As a business owner, that's always totally up to you. A client can ask about a service but if you're not qualified to, or choose not to offer it, for whatever reason that's your prerogative (one of the great things about being an entrepreneur service provider!

) In order to keep your clients happy when it comes to tasks that you don't offer, it can help to have a network of VAs you trust who DO offer said service to pass the work along to.
Just my two cents
Looking forward to chatting with you futher!