Seriously there is no harm in asking question regarding anything crypto related here on the forum, I can boldly tell you that majority of members here actually learnt lots about the cryptocurrency space or bitcoin from this forum, so feel free to ask.
But one thing i will ask you to place restrictions on is the type of questions you ask here, there are basically some that are not necessary because you can simply use the search button for that and I tell you there will be a thread out there on the forum about the subject matter. For example this your question has a thread here that explains it custodial vs non-custodial wallet explained.
Using the search button makes you not to look like a spammer creating repeating threads but when you ask newbies to make use of the search button you see threads like newbies are been maltreated which is not right.
For future occurrences you can learn how to use the search engine properly here
Thank you so much for your guideline i never knew There are some related topic here in this forum, I guess i didn't came quite on time that's why I miss the topic, I was thinking this is the first time of bring topic like this, but now you introduce this search engine to me I think I will take my time to search before creating a new topic so as to avoid creating a similar topic.