how to decide on an early Sr. yr job offer?

S15 has a job offer!! yay! he graduates in May.
My husband and i didnt go through this recruitment process so it’s all new to us.

he just can’t decide; they arent giving him alot of time and it seems so early. The job is in his home town. Yet there are so many companies interviewing on campus now and others are in this position. It’s a fair offer we think. How does a young kid know what to do? Will there be openings later in the spring if he defers? can he ask to start later in the summer? They wanted him to start May 6! He has an interview/plane ticket to another company out of state that he might not even get to as this job offer expires by then. And another company wants to talk to him as well.

we’re thrilled for him; but just dont know how to guide him. what have you all done?