as long as the money earned by your friend is legitimate and if you keep a proper record of all transactions it should be safe but as I see the earlier posts I feel that it is always safe to make him do it by himself.
It seems that if the purpose for good does not hurt, I agree with you at least need to also know that the money to be spent giving friends is indeed proven legitimate and not from actions that violate the rules
Always choose those people that being close to you if you buy Bitcoin or just conduct meetups to provide possible scam. Scammers people are now in telegram they fool noobs just to scam Bitcoin and they are also offering withdrawal from their given exchange but when you withdraw it you can't, you need to deposit first. Then, if you do, your deposit will be lost. That just an example that we must not trust online transaction when buying Bitcoin. There are many legit exchanges that we can
buy and sell Bitcoin.