travel to the usa on vwp pls help?

hello every one at the end of this month i am going to new york for 5day but i am travelling alone do know if a young man at age 25 travel alone if i will face problem last year i travel with my wife and kids but face no problem my esta is approved pls help me

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All you have to do is to convince the immigration officer that you will leave the country after your stay, and what should convince him more, than having wife and kids waiting at home. SInce you mentioned VWP and ESTA it can be assumed that you hold a passport of a "good" country, otherwise it would not be on the VWP. The immigration officers concentrate more on the "bad" countries, those with lots of visa violators are illegal over-stayers. No need to worry especially if you have already entered the USA under the WVP.