Convincing someone to invest in Bitcoin, like your dad or mom, requires understanding his concerns and interests. Highlight its potential for high returns, its increasing adoption by institutions, and its role as a hedge against inflation, use the sections above to support your thesis. Emphasize the security measures in place and educate him about the technology behind it. Start with small investments to mitigate risk and offer to assist him with the process. Ultimately, approach the conversation with patience, respect, and a willingness to address his doubts or questions.
I want to use the points above to approach the topic to close people, but I would really appreciate it if you could give me some extra tips, or hints, or arguments that may be useful for this. Also if you guys have some good short videos for such purpose, I would really appreciate it as well

You are probably seeing this from the point of view of a young person who still has a lot of life in front of him. Parents of people who are in their 30s are probably retired at this point, or they are just a few years away from retirement so, probably, they already built their retirement plan years and years ago. If they are ok with their current and future situation, I wouldn't try to convince them at all costs to buy bitcoin: sure, they could increase their retirement funds but what if bitcoin goes down, let's say, 30%, will they be able to hold? Or is it easy for them to sell at loss and then blame you? Bringing your parents into bitcoin is a dangerous path.