just their pride.... don't feel bad.. some people are just like that. If it would make you feel better...just do something for them without having to be asked!
Some people do not like to ask anyone for help.
help should ask to the Giver, the Helper, The LORD ALL MIGHTY! Why to people? Justice provided by mother nature will be remember by the HISTORY
Some people(possible a part of a control issue depending on the relationship) do not want to be or feel obligated to others. They do not want to be indebted. Sometimes this is conscience sometimes not. Another causation might lie in their having a self worth or self image issue-not worthy of a favor.
One man's opinion.
maybe he believes that lending a hand should come naturally and should not be asked for..
he may not be used to asking favor but for sure he's silently wishing to have someone who will volunteer to help him :)
Maybe they feel scared of u. They do favours for u so u don't get mad at them but r afraid to ask u a favour cause they don't want u to get mad at them.
Some people have their own way!
Probably because they've been raised that way. They hate any sense of exploiting another person and so they avoid asking favours on the off chance it may be interpreted in that way.