Croatia, 4 million people, managed to mobilize 250 000 (without any foreign help, and actually embargo on weapon buying) for final liberation offensive.
If Ukraine, 40m people country, cant mobilize at least 2 million after receiving hundreds of billions help
then obviously Ukrainians don't feel its worth it, for whatever reason
Mobilizing 2 millions in 40 millions people country looks nice and easy on paper, but reality is a bit different. From these 40 millions we should exclude women, children and elderly people. Then there is at least few millions people who left country during war and also people who alredy serving in army or died. So, actual number that you can potentially mobilize is so much smaller.
Why there issituations like in video above. In cities which are more far away from front line like Lviv, Kyiv, Odesa people are trying to live normal life. They are going no night clubs, pubs, cinema, concerts and etc. These who had motivation to defend country went fighting long time ago, others don't want to change their normal life, leave families and etc go to trenches, and drones and artillery flying above their heads. They want to continue living normally as they used before war, but they think that others have to fight for them. Don'y know what solutions for this problem is.
I do not think there is a huge mobilisation problem in that sense. I think the problem is that Ukraine population pyramid already suffered massively after the fall of the USSR due to the economy shock. You need people in a country and that people need to be young and able to raise children. Those that were first to be called are the ones that are older and probably had kids. Calling the young is a difficult decision, but they would eventually be used by Ruzzia later to fight for them in the next war, so anyway they are going to have to fight.
Would they die for Putin or would they live for their own country and right to choose their destiny?
I do get it that they want to go about their normal lives, who would not? It is difficult to assume that is simply not possible any longer.