I remember finding wild strawberries as a child, tiny like you say and pretty tasteless, but we ate them anyway π
It's a wonder we didn't poison ourselves with all the things we tried eating, although we'd been warned about the really obvious ones, deadly nightshade, castor oil seeds etc. I only discovered recently that what I thought was deadly nightshade is actually black nightshade, and the berries are fine to eat. I can also remember my mother saying wild fennel was poisonous and that's quite edible too.
One mistake I made though, was picking what I thought were hawthorn berries, I was going to try making hawthorn jelly. I put them in the deep freeze and forgot about them and they must have eventually been thrown away. Years later, I found out they were barberry berries which are very poisonous.