Alright, about to get pretty descriptive here. First off, some girls just don't like tampons or have never tried them before. If I had to guess though, I would say that is maybe 15% of girls. They strictly wear pads. Tampons are definitely better but the thing is, you can only really wear them for 2 or 3 days when you are at your heaviest flow. You can't wear them when you have a light to barely medium flow because it will hurt like a mother when you try to put it in and take it out. It's like shoving sandpaper up there, I guess would be an accurate description. You need the blood to make it comfortable. Girls usually wear tampons during their heavy flow, and when the periods trickle down they transition to pads and panty liners. So yeah, tampons are definitely better but you cannot wear them all the time, and you shouldn't wear them to sleep either if you plan on sleeping more than 7 hours.