OK Ruth, I've performed a few experiments, and have a few ideas for you to consider.
Firstly though, can I explain a little about the shareability of data.
If data is in a suitable format then it is easy to transfer, but if not then it gets difficult, as perhaps you are discovering.
Remember
Betamax and
VHS video recorders that were incompatible?
Think about transferring data from a
Windows PC via a
USB memory stick to an
Apple iPad ~ it is not easy partly because most
iPad do not have a
USB socket and partly because many
Windows files are not compatible with
Apple IOS.
In order to share your family tree data with your children, you need to consider suitable formats.
One advantage of the
Internet and
Email is their shareability.
The same websites work on Windows PC, Apple Mac/iPad/iPhone, Google Android tablets, etc, etc.
So your
FMP family tree is perhaps already more shareable than you realise.
The first step is to ensure your
Family tree > Tree settings have
Public tree ticked.
Secondly your children can create a FREE
FMP account using just their name and Email address.
You then send them the
URL from the address bar at the top of your browser window when displaying your
Family tree.
e.g.
https://tree.findmypast.co.uk/#/trees/d ... 423/family which is mine.
They copy that
URL into the address bar of their browser (on any device) when signed into their FREE
FMP account.
They can see your tree (except for living people) and much of your
Media but not the actual transcripts.
If they subscribe to
FMP then they can see the actual transcripts.
In the longer term, when you no longer need it, you could hand-over your
FMP subscription account to one of them.
You can still export your
GEDCOM from
FMP as a backup copy that can be uploaded to
FMP and probably get the
Media links back, or given to your children, who with a
FMP subscription account should be able to do much the same. However, some of the finer points of this route need further investigation.
That may be a more suitable strategy than trying to transfer your family tree to a
PC based product such as
FH, because unless your children also intend to use the same product, they may be faced with a similar challenge to transfer it to another product. What you may not realise is that
GEDCOM is not as universally standardised and supported as it should be, and every product adds customised data that often does not transfer to other products. So unless you restrict your tree to using a core subset of
GEDCOM that is widely supported, then there will be transfer challenges.
If any of this makes no sense, or you want to explore some of the options, then just ask.