Because people have a need to glue things to other things
Wood to PlasticFor the strongest and most reliable bond we recommend:
For a faster bond, but not as foolproof, we recommend:
For less toxic alternative, also more suited for large laminate scenarios, we recommend:
Clamping can make the difference between success and failure here.
There are so many kinds of plastic its hard to give advice here that applies to them all. If possible try a small test in an area that doesn't show.
Some plastics have a smooth surface finish that can be sanded off with a 120 grit sand paper, for better adhering properties.