Effective and efficient can be different. Some sanctions could be very effective, as in they ultimately achieve the intended goal, but very inefficient as they use a lot of resources. Other sanctions might not be effective on their own, but could be very efficient, as they us very little resources on your own side.
For the latter iirc. when Trump started a trade war with the EU, the EU mostly sanctioned agricultural products from areas where Trump was particularly popular. It didn’t cause that much damage to the US economy, but it was very cheap for the EU to substitute these products and caused disproportionate political damage.
Sports, Music, Hobbies like board games, Outdoor activities like camping and hiking.
There is plenty of fulfilling things to do together that dont involve alcohol or other drugs or “partying” in the sense of loud music, bad hookups and regrettable videos the next day.