very useful for receptionists, parents, teachers. usually people just tell you information or why something is so - in response to a question. with philosophy - all you have to do is ask 'why?' back. it leads people to their own conclusions - but helps them with the thinking process.
there are certain people who are very good at this. the ones that make you think that you knew the answer to the question long ago - but just couldn't remember what it was. perhaps psychology and philosophy go together. the thing is - you can only take it so far. if you talk to someone and think you worked out some problems - but, then have 3-4 more of them right afterward s- you see that thinking sometimes just makes life more difficult than feeling. you have to decide where the returns end. for instance, if you take every question to the last ounce of strength that you have mentally - you're not going to remember your phone number.
science and philosophy, imo, do not go together though. i think they are like oil and water. you will have hard fact. truth. and then, you will have the possible reasons for this and that - which are theory. you can only prove it with more thinking - in philosophy. whereas with science - you get a yes or no. if you can't stand 'maybe so' - you should not get a degree in philosophy.
also, it is my opinion that some people obtain a certain degree of satisfaction from seeing other people with puzzled looks on their faces. philosophy, imo, should be used as a comedy routine. like with 'this old house' -when people attempt to positively identify a tool they've never seen before.
on the other end of the spectrum - God and the bible offer some unique and valuable perspectives on 'constants' of the universe. i mean, nobody wants things always changing. do they? certain things change. certain things stay constant. it keeps a sort of equilibrium. if we didn't have this - we would be in chaos. too much philosophy produces this. i think humans thrive on the fact that we have a regular cycle of days, months, years...seasons, tides, certain things in people that are 'personality' and are constant. we don't necessarily want to change everything about the world. only a few things. possibly why humans go to war.