[Steve Van Doorn]

Tŷ Hafan Children’s Hospice is between Barry and Sully. I would say this was more likely a print someone made to make a child feel better

[BroJoeK]

"I would say this was more likely a print someone made to make a child feel better."

Maybe.
But careful forensic analysis should reveal any such frauds.

The fact is that dinosaur tracks (& many others) are not at all unusual.
Some places have hundreds of them: