As skipnchar said, your daughter would be perfectly safe in either rig. It’s mostly a matter of deciding which suits you best and they all have pros and cons.
We currently have an F150 and a small TT. My DW has been hounding me for 2 years to get a B or a small C to travel in. Her argument is the dogs can travel in the same space we’re in. The bathroom is readily available and she could make a lunch while we’re traveling. And I admit there is some attraction to having everything in the same space and it would be good for traveling to destinations, like visiting the grandkids. But she hasn’t convinced me yet.
The B is cost prohibitive and the C would have to be big enough to tow another vehicle if I’m camping. Otherwise I have to break camp every time I want to go anywhere and a MH is more unwieldy to sightsee in than my F150. My dogs ride in the shell of my PU and I can open the sliding window and they can stick their heads in the cab so I see no issue of them being in a separate space. Too, after about 3 hours of towing I want a break and bathroom and eating issues can be taken care of then.
A bigger issue is I’m a “camper “and like to get well off the pavement and a MH isn’t well suited to that sort of thing. So my PU and TT can do everything a MH can do and then some. I’d need two sets of vehicles, the MH for traveling and my PU and TT for camping. Doesn’t sound like good economics so we’re still in limbo on the issue.