These people are frequently prevalent in our society and if possible we should avoid such people as they may be harmful to us.
" We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses.”
– Abraham Lincoln
Knowledge is power.
I have seen some people gather personal information about others and they use this for gossiping and scandalizing .
"If you don’t understand my silence, you will not understand my words"
Yes. There may be some people who show interest in the details of other people and try to give unnecessary advises and suggestions even though not asked for.
But knowing the name and about the family is not a problem but asking many details and going into their financial matters is not a good sign. Anyhow different people will have different attitudes and we have to go along with all people as we are living in a society.