家有一老如有一宝 的英文怎么说

家有一老如有一宝
An old in a home is like a treasure of a family.

You can say: "Have an elderly at home is like having a treasure." But you should quote it as a Chinese saying. You have to assume the reader might not know this saying and explain it a little bit will help too.

Or: The family has one is old like has a treasure.
An Eldery at Home, reminiscent to treasure.
Have an elderly at home is like having a treasure.