Hi again,
I will share a bit more detail about hiking in Switzerland that might help you to choose wonderful and appropriate hikes for your family.
First of all, @hand.unknown.Ob is right, and I should have said it the first time I wrote, so very sorry for your loss. It must be quite difficult for you to be planning a trip at this time.
The Swiss love to hike, and start doing so at a young age. I find that when they rate a hike ‘difficult’ on any official website, as this one is rated, then be prepared for it to be quite a challenge for the average person.
Switzerland has over 65,000km of marked hiking trails. You will certainly find many very scenic ones to suit the needs of your family.
When I am looking for a new hike to do the first thing I check is the elevation gain/loss. For the Stoos hike it is:
Ascent 920m (this is almost 3,000 feet)
Descent 924m
https://www.outdoor-schwyz.ch/en/tour/regional-hiking-trail/stoos-ridge-hike/13600018/
Compare this with the hikes that your family likes to do. What kind of elevation gain are you used to?
Then I look to see if it is what is classified as a “Mountain Hiking Trail”, as this one is. For that each hiker needs to have proper hiking equipment, should be sure-footed and free from vertigo.
There is a simple online test to help you see if this kind of a hike is for you. It is in German, but for your own safety it is good to do the test. Just translate it as you go.
https://www.sicher-bergwandern.ch/de
They ask Questions such as:
General fitness - how often in a week do you exercise enough to work up a sweat?
How long you can stand on one leg (up to 1 minute), hands on hips. Time yourself.
Can you walk slowly along a straight line in small steps (one foot in front of the other)?
Alternately lunge forward to the left and the right and come back to the starting position (hands out in front of you). Can you do 10 repetitions?
Can you stand on a viewing platform that juts out from the mountain edge, with metal grating to stand on so that you can see through it, looking way down, without feeling nervous or holding on to the railing?
There are also questions regarding general knowledge of trail signage, hiking safety, etc.
Switzerland has a lot of beautiful ‘wanderweg’ trails, many in the mountains with stunning views. You can ask at your hotel or the tourist office for recommendations in the area(s) that you are staying. These trails do not have dangerous exposed sections and thus are easier and safer to navigate.