Web 3.0 is a technology of the internet that promises to replace the web 2.0 technology soon and it has some problems.

1

The first problem can be analyzed from our home.
Why do we need parents? To take care of us I believe and have a check on us (One of the primary actions of a parent)
Now take web 3.0, if you are set anonymous, i.e. no one knows anything about you. Then dont you think that if you ever do a crime on the internet, you cannot be traced and the victim can never get justice?

2

I believe that the sites like Google, Facebook, YouTube make your stay in their site by using ML and your data but have you ever thought that the very efficient results you get are because of that. The ML models scan your information to give you the relevant information and save a lot of your time

3

Though your data is not saved in a centralized server of any corporation it is there in some server and from there, anyone can download your data and moreover you will not know who has taken your data

4

The rapid development of the internet is because of the simple dev development tactics required in it. However, in web3.0 changing or developing becomes very hard and thus this speed of development will eventually be diminished

5

In web 2.0 alone thousands of scams and frauds are happening around the world, where it is centralized then think what can happen when the web will be decentralized in web 3.0

With these many disadvantages and the data shifting totally out of the hands of any parent organization, the internet may get disgusting and not so good as it is now.

So we must look forward to developing web 2.0 's technology to get better results