I thought it was nostalgia or in my head, but strawberries have actually gotten more tart and drier over the past couple decades due to genetic mutations. The same thing is happening to blueberries.
It is a question of type. Farmers grow the varieties they can get the most money out of and people continue buying them out of season, so farmers focus on growing varieties that are cheap to grow and can be farmed all year round.
The way to make farmers learn is to make more people aware of the issue and demand tastier strawberries during season instead of strawberries in the winter.
I eat only
wild blueberries btw. They are half the diameter of farmed blueberries but
soooo much tastier.
They grow in abundance not far from my door step, late June to early August ... or I could take the subway to a patch of forest elsewhere and pick them there. Also available frozen, but those I use only in pies or drinks.