I think the age of crypto alone is over; ICO especially dealing with trading and exchanges should allow bridging FIAT and Crypto; I know in many exchanges they allow that through USDT but still that is not good enough. I think allowing FIAT would give a huge boost to the one providing it. Luxcess group been operational for quite sometime so I think this is something they can introduce.
I wouldn't say the days of investing in ICO's using crypto is over... people are still using their ETH/BTC profits to reinvest in ICO's it makes more sense and means less fees.
Otherwise whats the point in cryptos if all we are ever going to do is continue to use fiat to pay for everything...