ha ha plavt, while that is normally true, most of us have eaten far too much in the last week or two already
for CNY what matters is not so much the gift as the bringing of good fortune into the household. the usual custom is to bring over 4 mandarin oranges (which represent gold): 2 for the host and 2 for the hostess, and as you hand them over to each say things like wishing you success, prosperity, health, happiness etc. stay for half an hour or so, chitchat, eat the goodies... they will then each in return hand you 2 oranges before you leave.
the children will of course be thrilled if you gave them a red packet each. though the custom is only married people need give angpows, many have gone modern and we just give angpows to each other for good luck whether we're married or not.
as for giving red packets to the guards, i would say go ahead. we give red packets to everybody... the market vendors, estate cleaners, maids etc. all in the spirit of abundance and wishing good fortune on everyone
