Issues About My Future and Who is the Boss of Me!

I'm fairly certain my sisters don't want me getting a new RV and hitting the road again. I'm pretty sure they want me to settle down and save money.

What are the concerns about my becoming a nomad again? Not "their" concerns, but "the" concerns?

Paying back people I owe money to. 
    I will not buy an RV/van until everyone is paid back. Duh.

Can I work? Disability? Need to figure that out.
    In the not-too-distant future I think I'll be able to work (see below).
    I can collect Disability if I cannot work; I just need a permanent address and checking account.
    Justifying Disability if I'm traveling: traveling is a completely different skill set. Holding a job involves a regimen my concentration may not allow, routine and tasks my memory may not allow, and stamina I may not have.
    Obviously I prefer to work!

Making money and saving money for retirement. I have to cover this base, obviously. 
    Working in National Parks.
    Writing and selling books.
    Monetizing blogs.
    Selling other items through amazon fulfillment services.
    
Keeping up with taxes, health insurance, etc.
    Make this a daily priority and put it in my "diary" to-do list.
    Make my bank accounts viewable by my sisters so they see this is being done.

Savings for van repair, emergencies.
    I have to have some savings to hit the road.
    I have to have income to hit the road.
    I have to have a savings column in the budget.
    Allay their fears by making bank accounts viewable by my sisters.

Safety.
    Cell phone.
    GPS for siblings to always know where I am.
    Pepper spray.
    Call/email/post online for sisters every night.
    AAA
    Car maintenance.

The bottom line is:
    I have tried to "get over" this wanderlust. It's not a phase, it's who I am.
    Some day I may be physically unable to travel and live in a small RV, but that day is not yet.
    I am an adult and I don't have a brain tumor or mental functioning issues anymore.
    If I can support myself financially (including through Disability), it's no one else's business how I do that.
    I get to determine the course of my life. Period.