i have 15 years of experience with the scouts and i have spent the last 4 years as the functioning leader for the rover team in my town.
just to clear things out, there are no guarantee that there will ever be any TUGs during the meetings or scout trips.
personally i had many of them and like tony2 said it can happen if you kinda make the challenge, but scout leaders have different toleration levels on certain subjects so there are no guarantee that it will be allowed among the scouts in your group.
now, TUGs or not, i highly recommend that you give it a try.
in the scouts you get to travel around the world. for an instance there is going to be a huge Rover-jamboree in Japan this year.
also you will get the chance to create a huge worldwide friendship. me personally, thanks to the scouts i have got to know people from Sweden, Denmark, Poland, Russia, Sri Lanka, Iceland, Finland, Spain, Greece, Canada, Northern Ireland and of course a lot of other people from my own country. and even if you can't get a TUG done with your own group, maybe you can find someone from other scout groups both in your own country as well as international.
you will also get the opportunity to learn about nature and wild-life, other cultures from all over the world, survival techniques, pioneering, orientation, morsecodes and so much more.
want some work out? you will get a lot of that too with the scouts as they often arrange obstacle runs, hiking, mountain climbing and rappeling.
you will also learn a lot of wisdom. Lord Baden Powell who started the scouts organisation had several inspiring quotes like "show me a poorly uniformed troop and i'll show you a poorly uniformed leader" or "when you want something done 'don't do it yourself' is a good motto for scoutmasters".
now, i don't know what your view on religion is, but there is one thing you should be aware about.
there is a lot of religion involved with the scouts, but once again this depends on every scout leader about how they will practice it with the scouts.
i for an instance only used the moral lectures that are used in many religions to teach my scouts some wisdom in behavior toward other people, but some other leaders will practically spread religious propaganda.
in the end, you don't necessarily have to be the kind of guy that goes to church every sunday (personally i only go to church if there is a funeral, baptize, or wedding i have to attend), but at least you should have respect for other peoples religion, no matter what they believe.
if you have no tolerance at all for religion then you might not find the scout that interesting, but if you are able to respect other people no matter what they believe in or don't believe (and that is no matter what you believe or don't believe yourself) then you should be able to tolerate it.
like i said, i don't know what your religious stand is, i just felt i should make you aware about this because i know a lot of people who attended one meeting and quit right after because they discovered that it was some Christianity involved.
oh, if you are interested in TUGs, you might get the opportunity to play a TUG, or not at all, but i promise you that if you stay with the scouts for a long enough time, you will learn how to use the many uses of a rope.
you will learn at least 4 different ways to lash a rope (which is good for tying limbs) and if you are paying enough attention you can learn all kinds of knots for many uses.
in the end, how much we tell you about the scouts, there is only one way for you to find out if you like it or not.
and that is to you try it out for yourself.
keep in mind that the first meeting may not be at all like the other meetings either.
the first meeting can have a boring result or a good result, but the next meeting could give you the complete opposite experience.
and no matter how many meetings you attend, you won't truly know what it's like to be a part of the scouts until you have attended at least one jamboree.
i hope this was helpful information for you. and no matter what you decide, BE PREPARED
