4-Person Dome Tent

Coleman makes decent lower cost tents. I had an 8 person that withstood several crazy winter storm fronts in florida while island camping (60-70 mph)...I did use all the guy lines and they were secured to trees or tree roots. I have also had a 4 person 10x10 dome tent from coleman that worked great https://preview.redd.it/f61egic2lptf1.jpeg?width=960&format=pjpg&auto=webp&s=a7894d5619f7bcf8c2db3f933bfa9419af460dc4

6 person tent is nice and roomie but you only need a two 4 person tents. I'd go Coleman as a basic tent it comes with everything but a tarp to lay under it. Scouting they usually tent two to a tent with smaller kids having an extra person in their tent.

I do a lot of beach camping, and have a 4 person Coleman dome tent that has stood up to 35+mph winds on Cape Lookout. The only issue was that the wind was blowing the sand so hard it came up and into the vents in the top of the tent. It has gone through other thunderstorms too. One wiped out 3/4s the tents at Ocracoke and ours was standing strong. Probably not the best tent, but it has survived a lot of heavy weather. Ours has the little patio entrance thing, which is nice for sand. Just make sure you have good stakes.

Assuming car camping, a simple Coleman 4 person dome tent that they are capable of putting up/taking down with a friend. 

My 4 person Coleman has held up for years with me and my 2 dogs camping 10+ nights a year