no this doesnt make you a bad person, people just grow up and move on, i live with my partner, little girl and have baby on the way, and i must admit when it comes to visting them im really lazy! we never were really that close growing up, i never remember hugs and kisses off my parents, and defo not off my sisters, which has had the opposite affect on me with my own as i hug and kiss her god knows how many times a day and we are very very close,
i wouldnt worry, i go months sometimes without seeing my sisters, its nice when i do see them but i dont miss them when i dont, i miss my little girl every day when she is in school!!! funny how things turn out
nothing wrong with you what so ever, i would say the majority of people dont see their familys half as much as they get older
:o)