Sure, why not? People have been using them for hundreds if not thousands of years. The WW2 generation was the last one to look at a silver tea set as something special, something to be cherished. Once the Baby boomers came around, the Rockers generation, it didn't last at all.

But even tho' they caution about possibly getting silver into your body, it's not enough to cause any harm to you, unless you were eating straight silver polish!!

Yes they have been commonly used for a long time.