Hi just need some opinions about being friends with 16-17 yr olds

Problem/Goal: my minor female friends being clingy with me

Hello so im 19F and my social circle is vast,,,the thing is ive been thinking about being at this age na 19 na tas may kaibigan akong 16/17 i mean i know it's not bad, cuz initially sa friend group namin halo halo lang talaga age namin ganon tlga ang buhay sa daan kung sino sino makakasalimuha mo. Im just thinking about the limitations and boundaries i should have between my minor friends which are girls too, cuz girlhood tends to be really clingy,intimate and such u know what i mean. I love being sweet to my friends, im just worried about specifically my 16&17 year old friend cuz they like hugging me alot sometimes we share kiss on the cheeks especially when in need of comfort, its fine for them and fine for me too pero still i have this feeling that it's weird?? Cuz im 19 lol so yun lang tanong ko..is it weird for me to be this close to my friends who are 16&17? And how should i put a boundary?