A widow (guy) with no kid met a lady but later found out that she is a single mother. The guy is a graduate while the lady is a hairdresser though very industrous.

The question now is this, does it really sound good for the guy to go ahead with this relationship

If he really likes this lady, her having a child should not be a problem.

If his only stumbling block is that she has a child then he has to decide if he is ready for a ready made family.

Being with a single mom can be very very good she:

Knows how to handle money and pay the bills
She is capable of having children
She is a mother already
She knows how to maintain a house
she has already failed at one relationship and will work harder in the new one.

when i think of more i will return.

Good one. That's true, it should not be a problem. If they really like each other why not try for the relationship, see where it ends up, they don't have anything to loose.