I have a question regarding swapping out compact gearing for a "normal" crankset on a new bike.

I'm considering getting a new bike, but the only options the stock bike has in terms of gearing is a triple crankset or compact. I don't want either. I prefer the standard 53/39 crankset, so how easy is it to swap that out? Do I need a different derailleur or bottom bracket? I'm sure it can physically be done, but I don't know if it makes sense to take a brand new bike and already have to replace several parts.

Thanks!