its your bike, and you can put anything you want on it. However, there are multiple reasons that the vast majority of people with decent road bikes choose not to use kickstands:
1) weight, (it doesn't make a lot of sense to pay a $1,000 to save a pound of weight off the bike and then put it right back on.)
2) most kickstands don't work very well, and can put the bike at more risk than leaning it or setting it down gently,
3) problems with clamping on a kickstand on lightweight frame materials.
4) to many they just don't look cool (admittedly a poor reason, but often the actual one if people were honest)