I have been on a litter campaign recently and often go to 2 of my local woods with a bin bag and pick up litter while I walk the dogs.
Without doubt, the worst offenders and teenagers who hang around at jumps. They buy meal deals, sweets and crisps from the local Budgens and leave 90% of their litter next to the log they sit on to eat it.
I’ve stopped and chatted to a few groups when I’ve been riding through and explained that I’ve been picking up their litter and the reason why. Partly that I hate litter and it is bad for the environment but also the jumps on on private land with the landowner turning a blind eye to the building, if it attracts attention because of the litter then the landower will knock the jumps down and fence it off and we all lose out. The situation improved for about 2 weeks and then started again.
Last night it got 3 shopping bags worth from a small section of woods, the shopping bags that were left behind from their food so no excuse that they couldn’t carry it.