Not all weeds are equal.
Some weeds have a positive role to play in the garden - and if you encourage the beneficial species, they’ll crowd out problem weeds, improve the ecology in your backyard, and make gardening easier
Some weeds, for example, are worth having to encourage predators to come and work at your place. This pretty, yellow flowered wild mustard (Sinapis arvensis) feeds the hoverflies and ichneumon wasps which prey on cabbage caterpillars. Bees love it, too!