That is not advisable because investing in crypto is very risky. If you don't know how to manage your investment it could turn into losses. If you are going to loan how can you pay back if you didn't gain profit but losses? Much better to just invest small amount of money but it came from your own pocket that you can afford to lose. Just think wisely because making any move and decision regarding making loan for your investment. Always think the possible output of it both positive and negative.