Daisies (Bellis perennis) are fantastic wild plants. They are also called Woundwort or Bruisewort. Daisies have long been used in domestic herbal medicine including, unsurprisingly, as a cure for fresh wounds and bruises. They are also edible. Use the buds, white petals and lemony flavoured leaves in salads. Beautiful.
Please don't encourage people to put weedkiller all over these useful plants! A lawn consisting of useful plants is stronger and healthier. Better for us and the planet!