Never heard of a marrionberry. Googled. Aaah, it's a cross between a couple other strains of blackberries. We have blackberries growing wild all over - I stop and pick a handful when they're ripe here and there, sometimes at the beach, sometimes a few blocks from home or at the edge of a parking lot wherever I am. We used to go pick buckets full of them for jam and pies etc when we were kids.
There are also tonnes of blueberry farms right around me. Some strawberry ones, too. And drive 25 minutes and there are tonnes of cranberry fields, too. I've never done commercial picking, but I have gone to a "u-pick," farm before to pick strawberries. (cheaper by the lb if you pick your own.)
It's Ok. I almost never do it these days. Most people don't want to do the work because it's long days in the Sun for low pay. The majority of berry picking farm labour around here are senior citizens from the Punjabi Sikh community. Their labour contractors take them to the fields in school busses and they pick berries all day in order to have something to do while contributing financially to their households. Plus most of the Indian community here comes from the farming region of Punjab, so it's in their blood to work the Earth - and it's valuable work, people need food. (Tonnes of cars driving around here with "No Farmers No Food," decals in support of the farmers' protests in India - possibly the largest protest in the history of the world.)
When my mom was a kid here, they picked berries for an after school job when they were ~10-14 or whatever. Make a few dollars etc. Almost no young people do that these days.. lazy + the piece rate pay is far lower than minimum wage and life is extremely expensive here so parents push their kids to at Least earn minimum wage and aim for higher pay ASAP. Understandable economics, but it's a shame people don't do truly valuable work of food harvesting because they can't earn enough money at it. Indian seniors, Mexican migrant labour.. and automation - I saw 2 blueberry picking machines driving down a highway between fields in the last week.
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for supporting trump. Because doing so is deplorable.