Well i think that is a good idea.A lot of investors who have little shops, or little businesses , like the man with a barber shop can accept the payment in BTC and and let other people know about the existence of this coin and make Bitcoin useful in everyday situations.
by marketing bitcoin to the public it will greatly help the spread and adoption, in the near term I will make a service business,
and I am ready to accept payments with bitcoin, at least that will give little help to bitcoin
There's no harm in setting up businesses and then accepting bitcoin as a form of payment. Obviously most people don't use bitcoin so you would not make as much money if you decided to restrict payments just to bitcoin.