That was my experience back in the late 90s. It had its pros and cons - sure, there was a lot of fun to be had with so little supervision and we were likely more independent in certain areas, but I've one sibling who ended up in serious legal trouble and on an ankle monitor for a year, crashing his future career prospects and another who had to be transferred to what we'd now call alternative provisions because of how much she was drinking and how that impacted her at school. How little our parents were involved definitely played a significant role in that. I certainly felt I had to be independent because no adult was going to give a fuck - I'd literally go missing for days and no one cared. These sort of not that uncommon situations often get ignored in these rose-tinted look backs. Lots of young people fell through the cracks, and still do.
Really, it depends on the child, their needs, and the courses they're on.
My third child currently at college throughout her GCSEs and now has always been the child who excels academically and socially with little input. I still check in with her, and I'm glad when she asks for support. She did need support in finding accessible work experience (where she's at requires 150 hours in the first year and she needs a placement that can fit with her disability), and I'm supporting her again in keeping an eye out for accessible work experience options for her second year.
My second child had very turbulent time at secondary and throughout her Level 3 apprenticeship regularly needed to decompress by talking to me so I absolutely knew what her day to day looked like. She became more capable over time as she worked out how to handle being an autistic adult, that took support.
My oldest child is the kind of person who is great at making things look like they're going really well when they're not. I'd do as others have said of checking in if everything was sorted, and he made it appear as if it was all on track. He hit a wall during his college years, was struggling, but covered it up because he thought others had it harder so shouldn't complain. Part of me regrets not being more involved, not knowing his day to day better, not having been able to see past his carefully constructed mask. I might have been able to help him before he hit rock bottom in a way that's taken years to rebuild from.
I think people say independence to mean capable, and for people like my son, like I was at that age, the myth of independence as a virtue causes more harm than good. Few are truly independent, we all rely on each other and evolved to do so. I think embracing being capable while also accepting interdependence, does a lot more for our wellbeing. I think it's importance for parents to model that.
I’d rather my kids got average grades and were also happy, well-rounded people that knew how to socialise well and make friends, were streetwise and had a bit of life experience, rather than being straight A students who were miserable with no friends and no social life. My kids’ happiness is the most important thing to me, not their academic achievement. I find it baffling when parents can live with their child being miserable so long as they get good grades
Those aren't often exclusive. It's an odd cultural idea common in many areas that people need to prioritise one side or the other, when they're interlinked. Plenty of young people get great grades, are happy, well-rounded, and have a great social life. Some need more support than others to do that. Being miserable and lonely can lead to struggling academically, spending two years to get weak grades can also make our kids miserable and isolating for others to avoid discussing the issue, even when they're quite able to take part in short-term happiness.