Our world changes constantly and if you want to move with the times and to progress along with the rest of society you should accept bitcoin. No problem in using usual money as well as digital currencies if it gives you comfort. If bitcoin disappears it doesnt mean that fiat money will grow.
maybe bitcoin will be money in the future to replace the paper money. but because not many know about bitcoin and now bitcoin position itself as an intermediary for sale and purchase online or virtual money that I think