Yes, approachable can be used to describe a person. When used in this sense, it means friendly and easy to talk to.
approachable
· approachable
The new teacher's friendly demeanor made her approachable to all the students in class.
Milquetoast is a word used to describe someone who is extremely passive.
Milquetoast is a word used to describe someone who is extremely passive.
approachable
Omnivorous, Closeted, Approachable, Piecewise
Approachable is the exception to the others. The others are reactions of avoidance.
amiable, amicable, approachable
Some adjectives that can describe someone who is fun are entertaining, amusing, lively, spirited.
Obviously no one can really be "a friend to all" persons. But, the phrase is often used to describe someone who is friendly, approachable, helpful toward a wide variety of people, etc.
A good friend is approachable. It begins with the letter a.