Will you be appying for your own benefits also?
yes
If you qualify and apply for your own retirement benefits and for benefits as a spouse , we always pay your own benefits first .
Excellent to clarify why a friend is going through that and I am worried that the wife will take everything from him. Does it matter how early or late I get my retirement benefits?
No matter what your full retirement age is you may start receiving your benefits as early as age 62 or as late as age 70.
What happens if I delay my benefits until after full retirement age?
If you wait to delay benefits until after full retirement age you may be eligible for delayed retirement credits that would increase your monthly benefit, which is something to consider.
What are some of the pros and cons to taking your benefits before full retirement age?
The pros of collecting your benefits before full retirement age are that you collect your benefits for a longer period of time.  The cons are that your benefit will be reduced.
What happens if I start benefits early?