they cannot give effective supervision on my PhD research. For example, when I present my research they usually just say my research is good without any useful technical suggestions on the research Perhaps your research is publishable, without any need for technical improvements.

sorry I don't think so. It almost happens every time I present my work.

Have your tried publishing? What do reviewers say?

I have recently published my first paper recently in a Q1/Q2 open source journal. Reviewers think it's good and I received only minor revision during the review process. But the work receives little supervision.

Your reviewers and supervisors think your work is good, maybe it is: Congratulations!

Why does your parents' opinion matter?

Keep on keeping on. I would think you should be able to contact your adviser at any time you think you need to ask a question or seek advice. Generally, your supervisors are busy people. As long as you don't constantly contact them, they should understand. As others have said, you seem to be progressing nicely with little supervison. Remember that the Ph.D. process is designed to produce independent scholars.

You are an adult now. The opinion of your parents should not matter more than that of your friends, and it should not be something that you should take into consideration here.

Sorry to say I am sponsored mainly by my parents.

Q1/Q2 are quarter rankings of SCI journals. One journal may have different rankings in different fields.

When I was at my last institution I would have sold a vital organ to get the kind of supervision that you seem to be getting!

Araucaria, really? For little supervision?

I think it's fairly normal that most of you contact is with the 2nd supervisor. That doesn't raise any red flags to me. Provided you're on track to finish I don't see how not meeting with your primary supervisor regularly is a reason to drop out. And perhaps you should discuss this with them - maybe they're assuming you don't want/need more frequent supervision?

2 weeks meeting can be considered by some as intensive, and it is more than most could expect (in my experience). As stated you should speak of the issues with them but carefully think about what you expect from this supervision before.

I had a similar situation. I had more background in my research direction than my supervisor and he wanted to widen his scope. That never happened. I did get his time, support, general experience, and we met once a week and brainstormed. I did get some false positive/false negative advice, and I didn't know enough to properly judge the impact the research direction and my ideas (and papers) might have, and took a lot longer than needed. I got my PhD, a lot of great memories, but I didn't get enough impact to make a meaningful impact in science. Also no career in academia (no harm done).

I totally agree with you Jan. That's exactly what I am trying to explain here.

@AzorAhai-him- Why does your parents' opinion matter? Perhaps because a son or daughter can suspect that their parents have more experience than themselves, and can see something that they themselves could have overlooked?

You think he ought not solicit or consider the opinion of his parents? His parents (presumably) care about him enough to give a considered answer and (might be) knowledgeable about the world of higher learning. OP is well-advised to solicit advice from many sources and follow his own lights based on what he hears, but "don't ask your parents" and "don't listen to what they have to say" seems like an obstinate and reactionary opinion.