Girls...are hco jeans really that tight?

my gf always wears hollister laguna skinny jeans (size 0R if I'm not mistaken. which are the right size for her; size 1 is too big) She loves them but she sometimes complains that they always need to be pulled up or that she has trouble sitting down cause of how tight they are. They are the right size, but it just seems like why put yourself through the trouble? I've watched her put them on lying down on her bed or the floor hahaha. So is she right about hco jeans?