How many problems do you have while driving with a bodykit ?

Hi, so I’m buying an I30N pfl on friday. And I’m already looking at some bodykits which made me think.

Do the bodykits make you “scrape” everything more ? Like is it a big difference between having and not having them in terms of car height. Can I go with the body kit ona steeper ramp ? Can I normaly mount the sloped curbs ? (Do not know how to explain but those curbs that are on an angle and you are suposed to pass over them.

Sorry for the stupid question but i just want go make if i fit a bodykit i still have a functional car.