Fiat currencies? How whatvkimd of ICO is this that you are talking about?
You must not have seen ICOs recently then,,, a lot have accepted fiat payments. Never seen Paypal but almost every big ICO based on existing business or already functioning business entity have included card payments (Visa and Mastercard) and even bank payments. In a sense, this is "easier" for them because almost all the crypto they get they will liquidate anyway.
If you think about it saves fees from people buying crypto and then the ICO selling it. Maybe this helps reduce the false buy/sell volumes for crypto.