A bigger issue is education about which plastics to put in recycling (1 and 2 if you're unaware, 5 can be but generally isn't). All of our "recycling" heads to landfill for this reason.
https://www.plasticexpert.co.uk/how-many-times-can-plastic-b...
Once they know that they can decide for themselves if it’s ok for their take away food container to end up as a park bench at best.
1. recycling doesn't consist solely of plastic recycling
2. even factoring in contamination, claiming that "all" of it is heading to landfills is a stretch.