I dont think small business will sell for crypto in coming future only those who are fan and risk taker will prefer payment in crypto but then comes the legal issue so unless respective government consider crypto as legal , i dont think small business will prefer to sell for crypto.
I know people are working and having their own business but trust me crypto can make people earn more than any business so that's why I am always ready to sell my business for cryptocurrency as small business will take years to give me profit and the income that I always wanted and crypto can rise suddenly and it can give me that profit at once no hard work will be required only holding with patience