Nato will not get involved inside the Ukraine because ukraine is not a member of nato

many people think that NATO is some humanitarian group helping out any country in need. but they are not. they are a member service, helping out only those that are members. (just like a gym membership)

if they started helping out those that are not members, then the existing members see no benefit in paying to be members if they can get the same support/service without paying to be a member. so nato has to not help out non-members too much. or it will see other countries not see the need of paying for membership.
(yep they run it like a business)

so nato will not go into ukraine and defend it.
instead nato stand on the outside in neighbouring countries that are part of nato/international waters. and so nato will defend those neighbouring member countries and stop russia from using those countries as a pass through.

nato are not giving free aid/defensive weapons to ukraine. ukraine have to buy them from nato.