newbie,want to buy a old popup trailer,is it safe?

vincentru wrote:
...I have a honda pilot 2013,can tow max 2000lbs....

Unfortunately you can't tow much.

Most TV (tow vehicle) manufacturers require that you subtract passengers and gear in the TV from the tow rating. Check your manual.

Knowing how much gear a wife and kids require, I'd say you are in tent territory. Maybe a tiny cargo trailer to carry the tent and gear.

Either way you need to limit yourself to a trailer with a GVWR of 1,500 - 2,000 which would be a dry unloaded weight of less than 1,000.