About to be shot down in flames, but if you want to use sites only perhaps it might be feasible to see if you like campsite living to by a cheap, old, small caravan to try that part out, then upgrade to a proper MoHo later.
Now where did I put my coat...
Hillbillie, I am making the assumption you are a woman... I chose a MH for the specific reason that towing and 'man'handling a caravan was not the best option for a woman.
I've seen plenty of one parent+child/children Moho-ers, mostly smaller vans like VW's. As a female solo traveller I use campsites mostly and being a member of Caravan Club and Camping and Caravanning Club site fees are not exotically high, and per person, which is seldom the case on privately owned sites. When you get to that stage, hillbillie, call for input on the better option of the two.
Last year (in UK) I even met a solo handicapped lady Moho-er, and in France another handicapped man with able-bodied spouse. With wheelchairs they were coping and having fun with Bongo's. If you're staying in campsites you don't necessarily need onboard facs. In my early MH days we didnt have those luxuries. There are also aux pop-up tent options which can make life a little more comfy.
Go for it, don't wait if you can afford it. I also have a husband who preferred to stay home. Now for health reasons he no longer has a choice. Thankfully I do and I haven't changed my mind. I get cabin fever very quickly. I can't give up my MH.