My Cannondale t1 came with a 30/39/50 triple crank and an 11/32 cassette.
I changed it to a 26/36/48 triple crank and an 11/34 cassette.
I've done 1000 kilometres of touring on the new gears. It was on gently rolling topography with hills less than 200 metres vertical at slopes less than or equal to 6%

I've found the new gears are sufficient for the type of touring I was doing.

It would have been cheaper to negotiate a swap at the time of purchase, or select a bike that came with lower gears. But I was learning as I went along and am happy with the outcome.